{"title":"ST. CYR BRAND SPA PRODUCTS","description":"\u003cp\u003eSt. Cyr Pool \u0026amp; Spa has been producing premium grade pool and spa chemicals for over 30 years. Get the spa chemicals you need from a family owned and operated New England brand.\u003c\/p\u003e","products":[{"product_id":"st-cyr-copper-algaecide-70-1-qt","title":"St. Cyr Copper Algaecide 70 1 Qt","description":"\u003ch2\u003eSt. Cyr Copper Algaecide 70 1 Qt\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eTackle tough algae growth with confidence using St. Cyr Copper Algaecide 70. This \u003cstrong\u003econcentrated, copper-based formula is designed to control and prevent stubborn green, yellow, and brown algae, leaving your pool water clear and inviting\u003c\/strong\u003e. Ideal for routine maintenance or when algae becomes a challenge, it delivers strong results without foaming or clouding the water.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePowerful Algae Control\u003c\/strong\u003e – Targets and treats green, mustard, and brown algae efficiently.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCopper-Based Formula\u003c\/strong\u003e – Long-lasting effectiveness designed for clear water treatment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo Foam, No Clouding\u003c\/strong\u003e – Leaves water clean and visually appealing after application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy to Apply\u003c\/strong\u003e – Simple liquid formula disperses quickly and evenly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComplements Sanitizers\u003c\/strong\u003e – Works effectively when paired with a chlorine shock treatment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrusted Brand\u003c\/strong\u003e – Quality solution from St. Cyr for reliable pool care.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Name: St. Cyr Copper Algaecide 70\u003c\/li\u003e\n\u003cli\u003eSize: 1 quart bottle\u003c\/li\u003e\n\u003cli\u003eActive Ingredient: 7% Copper Complex (as elemental copper)\u003c\/li\u003e\n\u003cli\u003eApplication: Use as directed for algae prevention or removal\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatibility: Safe for most pool types (not recommended for gunite pools)\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eUse With: Works alongside chlorine shock for maximum effectiveness\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151086690382,"sku":"025551697226","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/1-465x465.jpg?v=1713818382"},{"product_id":"premium-complete-spa-chemical-kit","title":"St. Cyr's Premium Complete Spa Chemical Kit","description":"\u003ch2\u003eSt. Cyr's Premium Complete Spa Chemical Kit\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr's Premium Complete Spa Chemical Kit equips you with every essential for startup and ongoing hot tub maintenance, delivering safe, sparkling water that protects your spa from the first fill. \u003cstrong\u003eThis value-packed bundle covers sanitizing, shocking, balancing, and preventing issues like scale or organic buildup, simplifying care for chlorine-based systems.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTailored for 300-500 gallon\u003c\/strong\u003e spas, the kit supports weekly routines with fast-dissolving granules and liquids that maintain pH 7.2-7.8, alkalinity 80-120 ppm, and sanitizer levels for bather-safe soaks. It prevents corrosion, cloudy water, and equipment strain, making it ideal for Bullfrog or Jacuzzi owners seeking reliable, all-in-one chemistry.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features and benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull chlorine system with shock for crystal-clear sanitation and oxidation of wastes.\u003c\/li\u003e\n\u003cli\u003epH\/alkalinity adjusters plus calcium for balanced water that extends component life.\u003c\/li\u003e\n\u003cli\u003eStain\/scale preventer and enzymes tackle metals, minerals, and biofilms proactively.\u003c\/li\u003e\n\u003cli\u003eTest strips enable quick at-home checks without lab visits.\u003c\/li\u003e\n\u003cli\u003eCost-saving bulk sizes handle multiple months per fill.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit contents\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDichlor Granular Chlorine (5 lb)\u003c\/strong\u003e: Primary sanitizer kills bacteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine-Free Shock (5 lb):\u003c\/strong\u003e Oxidizes organics without raising chlorine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH\/Alkalinity Up (2 lb):\u003c\/strong\u003e Raises to ideal 7.2-7.8 pH, 80-120 ppm TA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003epH\/Alkalinity Down (3 lb): \u003c\/strong\u003eLowers excess for stable chemistry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCalcium Increaser (2 lb):\u003c\/strong\u003e Boosts hardness to 150-250 ppm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpa Stain and Scale (1 pint):\u003c\/strong\u003e Sequester metals, prevent deposits.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpa Enzyme Treatment (1 pint): \u003c\/strong\u003eBreaks down oils, lotions, biofilms.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAquaCheck Test Strips (50 pack):\u003c\/strong\u003e Tests chlorine, pH, alk, calcium instantly.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151103565902,"sku":null,"price":185.92,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/3-465x465.jpg?v=1713818647"},{"product_id":"spa-water-balance-kit-ph-alkalinity-up-and-down-plus-calcium","title":"St. Cyr's Spa Water Balance Kit – PH\/Alkalinity Up and Down Plus Calcium","description":"\u003ch2\u003eSt. Cyr's Spa Water Balance Kit – PH\/Alkalinity Up and Down Plus Calcium\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr's Spa Water Balance Kit delivers everything needed to \u003cstrong\u003efine-tune pH, alkalinity, and calcium hardness for crystal-clear, safe hot tub water that protects equipment from corrosion or scaling.\u003c\/strong\u003e This \u003cstrong\u003eall-in-one bundle \u003c\/strong\u003esafeguards your spa investment with precise adjustments that keep chemistry stable soak after soak.\u003c\/p\u003e\n\u003cp\u003eEssential for weekly testing and maintenance, the kit tackles common imbalances caused by bather load, weather, or fill water. Balanced parameters prevent cloudy water, skin irritation, and damage to pumps, heaters, and shells, extending your spa's lifespan.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey features and benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComprehensive coverage for pH up\/down, alkalinity control, and calcium boosting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGenerous sizes handle multiple adjustments per fill—ideal for 300-500 gallon spas\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli\u003eFast-dissolving granules mix easily with no clumping or residue.\u003c\/li\u003e\n\u003cli\u003eCost-effective starter or refill for ongoing water care routines.\u003c\/li\u003e\n\u003cli\u003eSupports all sanitizer types, from chlorine to minerals.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKit contents\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\n\u003cstrong\u003e2lb pH\/Alkalinity Increaser \u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\n\u003cstrong\u003e3lb pH\/Alkalinity Decreaser\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\n\u003cstrong\u003e2lb Calcium Hardness Increaser \u003c\/strong\u003e\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage guidelines\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest water first, then add small doses with jets running—recheck after 4-6 hours. \u003c\/li\u003e\n\u003cli\u003eTarget pH 7.4, TA 80-120 ppm, calcium 175-225 ppm for vinyl\/fiberglass spas.\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151107858510,"sku":null,"price":32.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/Balancer-Kit-St.-Cyr-465x465.jpg?v=1713818739"},{"product_id":"spa-foam-down","title":"St. Cyr Spa Foam Down 16OZ","description":"\u003ch2\u003eSt. Cyr Spa Foam Down 16OZ\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Spa Foam Down is an effective solution \u003cstrong\u003edesigned to quickly eliminate excessive foam in your hot tub water\u003c\/strong\u003e. While not a preventative treatment, it works instantly to remove foam buildup, allowing you to enjoy a clean and comfortable soak every time.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast-Acting Formula: Instantly dissolves foam on the water surface for clear, smooth water.\u003c\/li\u003e\n\u003cli\u003eLow Dosage: A small amount (usually a capful) is sufficient to eliminate most foaming issues.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible: Safe for use with all common spa sanitizers and chemicals.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eEasy to Use: Simply add to foaming water before or during spa use.\u003c\/li\u003e\n\u003cli\u003eSupports Spa Care: Helps reduce maintenance caused by foam buildup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage Tips\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePrevent Foam Build-Up: Showering for 30 seconds before using the spa, even with a bathing suit on, helps reduce oils, soaps, and lotions that cause foaming.\u003c\/li\u003e\n\u003cli\u003eApplication Advice: Add slowly and in small amounts for best results.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis product is ideal for spa owners looking for a quick and reliable fix to foam issues, enhancing the spa experience without complicated procedures.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151109824590,"sku":"022-027012S12","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/6-465x465_d99f1853-91b9-4a3a-ad5f-4c9f5f5e12b7.jpg?v=1713818788"},{"product_id":"spa-enzyme-treatment","title":"St. Cyr Spa Enzyme Treatment 16oz","description":"\u003ch2 data-end=\"834\" data-start=\"763\"\u003eSt Cyr Spa Enzyme Treatment 16oz\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Spa Enzyme Treatment provides a straightforward and effective way to \u003cstrong\u003emaintain clearer, cleaner, and fresher hot tub water by naturally breaking down organic contaminants that traditional sanitizers and clarifiers often struggle to remove.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow St. Cyr Spa Enzyme Treatment Works\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnzymes act as natural biological cleaners, breaking down body oils, lotions, sweat, and other organic matter that create foam, scum lines, and cloudiness in spa water.\u003c\/li\u003e\n\u003cli\u003eThis process not only prevents visible water issues but also makes contaminants easier for filters and sanitizers (chlorine, bromine, ozone, salt) to remove, enhancing the efficiency of your overall water care routine.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReduces foam and scum buildup: Stops unsightly bubbles and prevents waterline residue caused by organics.\u003c\/li\u003e\n\u003cli\u003eBreaks down oils \u0026amp; lotions: Keeps water fresh, aids in preventing filter clogs, and reduces organic buildup on surfaces.\u003c\/li\u003e\n\u003cli\u003eBoosts filtration efficiency: Helps filters last longer and maintain higher performance by reducing organic workload.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eWorks with all sanitizers: Fully compatible with chlorine, bromine, ozone, and saltwater sanitizing systems.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eEco-friendly and non-toxic: Safe for people, pets, and the environment; does not cause irritation or dryness.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eReduces overall chemical use: Makes your sanitizer work more efficiently and may reduce the need for other strong chemicals like shock treatments.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eApplication \u0026amp; Dosage\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRegular maintenance: Add 1 oz per 500 gallons of water once per week, pouring it directly into spa water with jets running—no pre-mixing required.\u003c\/li\u003e\n\u003cli\u003eAfter heavy use: Increase dosage to 1.5 oz to tackle excess contaminants.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151110152270,"sku":"022-049012S12","price":10.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/Untitled-design-5-465x465.jpg?v=1713818796"},{"product_id":"chlorine-free-shock-2lb","title":"St. Cyr Chlorine Free Shock 2lb","description":"\u003ch2\u003eSt. Cyr Chlorine Free Shock 2lb \u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr’s Chlorine-Free Shock for hot tubs is a smart, gentle way to \u003cstrong\u003erevitalize spa water between or after soaks\u003c\/strong\u003e. This high-strength MPS (monopersulfate) oxidizer works alongside standard chlorine or bromine sanitizers, supporting sparkling, inviting water without harsh odors or irritation.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eChlorine-free formula is non-toxic and non-odorous, perfect for sensitive skin and enjoyable for all bathers.\u003c\/li\u003e\n\u003cli\u003ePowerful MPS oxidizer rapidly destroys organic contaminants, making water look clear and fresh after every soak.\u003c\/li\u003e\n\u003cli\u003eCompatible with chlorine and bromine systems—offers flexibility and enhanced water care for any hot tub routine.\u003c\/li\u003e\n\u003cli\u003eIdeal for FROG @ease hot tubs as a safe, effective alternative shock treatment.\u003c\/li\u003e\n\u003cli\u003eQuick, easy application: simply add after every soak for maintained clarity, or dose just before soaking to prep the spa.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eApplication: Hot tubs\/spas\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eMain ingredient: High-strength monopersulfate (MPS) oxidizer\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eDosage: 2 oz per 500 gallons for best results\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eUsage: Safe to add before or after soaking\u003c\/li\u003e\n\u003cli\u003eScent: Odorless\u003c\/li\u003e\n\u003cli\u003eToxicity: Non-toxic; gentle on skin and surfaces\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eFor a clean, enjoyable hot tub experience, this shock is a reliable and user-friendly supplement to any spa water care routine.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151110283342,"sku":"676674221210","price":19.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/2-465x465_67a80239-d4d2-4772-8329-c04aa681223d.jpg?v=1713818798"},{"product_id":"spa-stain-scale-metal-control","title":"St. Cyr Spa Stain \u0026 Scale Metal Control","description":"\u003ch2\u003eSt. Cyr Spa Stain \u0026amp; Scale Metal Control\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Spa Stain \u0026amp; Scale Metal Control is a specialized metal sequestering treatment that \u003cstrong\u003eprotects your hot tub from discoloration and staining caused by metals like copper and iron commonly found in tap water\u003c\/strong\u003e. It also helps prevent scale buildup which can damage spa equipment and surfaces.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSequesters metals such as iron and copper to prevent water discoloration and waterline staining\u003c\/li\u003e\n\u003cli\u003ePrevents calcium and mineral scale buildup that can clog filters and damage plumbing\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible with most sanitizer types, including chlorine and bromine\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePhosphate and acid-free, safe for all spa surfaces\u003c\/li\u003e\n\u003cli\u003eHelps maintain clear, aesthetically pleasing water and prolong spa equipment life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage and Directions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdd Spa Stain \u0026amp; Scale Metal Control each time you fill your spa or add a substantial amount of fresh tap water\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eDosage: Typically 8 oz per 200 gallons for initial treatment on fresh fill, then 1 oz per 200 gallons weekly for maintenance\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eAfter dosing, run the spa for 24 hours without adding chlorine or other sanitizers\u003c\/li\u003e\n\u003cli\u003eRinse spa filter thoroughly after the 24-hour period before adding chlorine or bromine sanitizers for ongoing maintenance\u003c\/li\u003e\n\u003cli\u003eAvoid simultaneous use with certain clarifiers or flocculants containing cationic polymers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eRegular use of this product protects spa water and equipment by preventing stains and scale before they develop, ensuring a cleaner, more enjoyable hot tub experience.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151110381646,"sku":"022-025112S12","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/Untitled-design-8-465x465.jpg?v=1713818801"},{"product_id":"spa-granular-chlorine-dichlor","title":"St. Cyr Spa Granular Chlorine Dichlor 2lbs","description":"\u003ch2\u003eSt. Cyr Spa Granular Chlorine Dichlor 2lbs\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr’s premium grade granular chlorine uses 99% stabilized Sodium Dichlor, offering \u003cstrong\u003efast-dissolving sanitation ideal for portable spas and hot tubs\u003c\/strong\u003e. This 2lb container delivers effective chlorine that kills bacteria, algae, and organic contaminants to maintain clean, clear, and safe water.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFast-Dissolving: Quickly disperses in water providing rapid sanitation without residue or damage to spa surfaces.\u003c\/li\u003e\n\u003cli\u003eStabilized Formula: Contains 99% stabilized Sodium Dichlor for longer-lasting chlorine protection even under sunlight.\u003c\/li\u003e\n\u003cli\u003eEasy to Use: Granular form allows precise dosing and quick adjustments for optimum chlorine levels.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eIdeal for Spas: Specifically designed for hot tubs and portable spas, avoiding the harshness of pool chlorine tablets.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eMaintains Water Quality: Kills bacteria and algae to keep your spa water safe, clear, and inviting.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eActive Ingredient: Sodium Dichloro-s-triazinetrione, 99% stabilized chlorine\u003c\/li\u003e\n\u003cli\u003ePackage Size: 2 pounds\u003c\/li\u003e\n\u003cli\u003eRecommended Dosage: Add 2 oz twice weekly or as needed based on chlorine readings\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eUsage: Use with pump on; test chlorine levels weekly and adjust accordingly\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eBrand: St. Cyr Pool \u0026amp; Spa\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis granular dichlor product from St. Cyr offers reliable and convenient sanitizing power, making it an essential part of routine spa care.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151110545486,"sku":"022-003020S12","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/1-465x465_1c7cf34f-3ecc-4a4d-b99a-1fc8b441f328.jpg?v=1713818804"},{"product_id":"spa-ph-alkalinity-down-3lb","title":"St. Cyr Spa Ph\/Alkalinity Down 3lb.","description":"\u003ch2\u003eSt. Cyr Spa Ph\/Alkalinity Down 3lb.\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Spa pH\/Alkalinity Down is a granular acid product containing sodium bisulfate, commonly used to \u003cstrong\u003elower both pH and alkalinity levels in hot tub water when they are too high\u003c\/strong\u003e. Maintaining proper pH (7.2–7.8) and alkalinity (80–150 ppm) is crucial to prevent issues like cloudy water, scale buildup, and reduced sanitizer effectiveness.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eContains sodium bisulfate (dry acid) to safely reduce pH and alkalinity\u003c\/li\u003e\n\u003cli\u003ePrevents cloudy water and scale caused by high pH or alkalinity levels\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eHelps chlorine and other sanitizers work more effectively\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eGranular form allows controlled dosing for precise water balance\u003c\/li\u003e\n\u003cli\u003eSuitable for weekly adjustments or as needed based on water testing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage and Directions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest spa water pH and alkalinity before application\u003c\/li\u003e\n\u003cli\u003eWhen pH exceeds 7.8 or alkalinity rises above 150 ppm, add St. Cyr pH\/Alkalinity Down as directed on the product label\u003c\/li\u003e\n\u003cli\u003eDissolve the recommended amount of granular acid in a bucket of water before adding slowly to spa water with jets running\u003c\/li\u003e\n\u003cli\u003eCirculate water for at least 1–2 hours and retest before adjusting further\u003c\/li\u003e\n\u003cli\u003eHandle with care; use gloves and avoid direct contact due to acidic nature\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eImportant Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eLower alkalinity first if both pH and alkalinity are high, as this stabilizes water balance more effectively\u003c\/li\u003e\n\u003cli\u003eAvoid overdosing; add small amounts gradually while monitoring water parameters\u003c\/li\u003e\n\u003cli\u003eStore in a dry, cool place away from incompatible chemicals and moisture\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eUsing St. Cyr Spa pH\/Alkalinity Down 3lb helps maintain clean, clear, and balanced spa water, protecting your hot tub and ensuring a better soaking experience.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151110873166,"sku":"022-014035S12","price":8.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/4-465x465.jpg?v=1713818811"},{"product_id":"spa-calcium-increaser-2lb","title":"St. Cyr Spa Calcium Increaser 2lb.","description":"\u003ch2\u003eSt. Cyr Spa Calcium Increaser 2lb.\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Spa Calcium Increaser is formulated to\u003cstrong\u003e raise the calcium hardness of your hot tub water, helping prevent foaming, reducing equipment corrosion, and extending the lifespan of spa components.\u003c\/strong\u003e The 2lb bottle contains pure calcium chloride chips and is ideal for spas where water hardness may be too low for optimal system performance.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRaises Calcium Hardness: Increases water hardness to the recommended range, supporting clear, balanced water and protecting spa equipment.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eProtects Components: Reduces the risk of foam and prevents premature damage to heaters and other sensitive parts.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eEasy Application: Calcium chloride chip formula dissolves effectively for precise dosing.\u003c\/li\u003e\n\u003cli\u003eLong-Term Value: Supports longer life for heating elements, pumps, and other immersed hardware by reducing the risk of corrosive soft water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Type: Calcium hardness increaser for spa\/hot tub\u003c\/li\u003e\n\u003cli\u003eActive Ingredient: Calcium chloride chips\u003c\/li\u003e\n\u003cli\u003eNet Weight: 2 lbs\u003c\/li\u003e\n\u003cli\u003eRecommended Usage: Add slowly—no more than 4 oz at a time, even less is better. \u003cstrong\u003eAlways refer to product label for exact dosing.\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eManufacturer: St. Cyr Pool \u0026amp; Spa\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTip: Test water before and after application to achieve desired hardness. Disperse slowly with the circulation system on for even mixing\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151110971470,"sku":"022-015020S12","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/5-465x465.jpg?v=1713818814"},{"product_id":"spa-ph-alkalinity-increase-2lb","title":"St. Cyr Spa Ph\/Alkalinity Increase 2lb.","description":"\u003ch2\u003eSt. Cyr Spa Ph\/Alkalinity Increase 2lb.\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eThis product is an essential part of your spa water care routine, providing balanced chemistry for a comfortable and long-lasting hot tub experience. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDual Action: Raises both total alkalinity and pH to maintain stable and comfortable water conditions.\u003c\/li\u003e\n\u003cli\u003eProtects Spa Components: Proper water balance reduces corrosion and prevents pH bounce that can damage spa surfaces and equipment.\u003c\/li\u003e\n\u003cli\u003eImproves Sanitization: Supports efficient sanitizer performance for cleaner, clearer spa water.\u003c\/li\u003e\n\u003cli\u003e\u003cstrong\u003eEasy to Use: Comes in a 2lb granular form for straightforward dosing and fast dissolving.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible: Works well with all common spa sanitizers and chemicals.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Type: pH and alkalinity increaser for spas and hot tubs\u003c\/li\u003e\n\u003cli\u003eNet Weight: 2 lbs\u003c\/li\u003e\n\u003cli\u003eActive Ingredient: Sodium bicarbonate (typically)\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eRecommended Dosage: Follow label instructions for proper dosing based on water chemistry and spa size\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eBrand: St. Cyr Pool \u0026amp; Spa\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis product is essential for maintaining balanced spa water, helping ensure longevity of your hot tub and an enjoyable, refreshing bathing experience.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":41151114313806,"sku":"022-016020S12","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/3-465x465_c0426ca4-ad2d-4ea1-a379-95d840890c75.jpg?v=1713818819"},{"product_id":"st-cyr-stabilized-chlorinating-3-giant-tabs-4lbs","title":"St. Cyr Stabilized Chlorinating 3\" Giant Tabs (4lbs)","description":"\u003ch2\u003eSt. Cyr Stabilized Chlorinating 3\" Giant Tabs (4lbs)\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Stabilized Chlorinating 3\" Giant Tabs are slow-dissolving, stabilized chlorine tablets made with 99% pure trichloro-s-triazinetrione (trichlor) \u003cstrong\u003efor powerful, long-lasting pool and spa sanitation\u003c\/strong\u003e. Each 3-inch tablet provides up to 90% available chlorine, is stabilized with cyanuric acid to reduce UV breakdown, and is designed for use in floaters, feeders, and skimmers for continuous disinfection.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Highlights\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e3-inch, slow-dissolving stabilized chlorine tablets\u003c\/li\u003e\n\u003cli\u003e99% pure trichlor formula for maximum sanitation\u003c\/li\u003e\n\u003cli\u003eDelivers 90% available chlorine, ideal for killing bacteria and controlling algae\u003c\/li\u003e\n\u003cli\u003eStabilized against UV rays for longer-lasting chlorine effectiveness\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eSuitable for all pool types, including in-ground and above-ground pools\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible with floaters, automatic feeders, or skimmers for precise dosage\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eWeight: 4 lbs per package\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage \u0026amp; Application\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdd to floater, feeder, or skimmer according to pool size and chlorine demand\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eTypically 1–3 tablets per 10,000 gallons weekly, but adjust as needed based on test kit readings\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eMaintain free chlorine levels between 1–4 ppm for safe swimming\u003c\/li\u003e\n\u003cli\u003eStore tablets dry, tightly sealed, away from heat or open flames\u003c\/li\u003e\n\u003cli\u003eDo not mix with other chemicals; use only in recommended dispensers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRecommended for: \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003ePool and spa owners needing effective, economical, long-lasting protection against bacteria and algae with minimal chemical waste and UV loss. These tablets are best used in floaters or feeders, not added directly to pool water or mixed with other sanitizing agents.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default","offer_id":41985952088142,"sku":"022-006021P08","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/StCyr3intabs.png?v=1757601433"},{"product_id":"st-cyr-chlorine-free-shock-5lb","title":"St. Cyr Chlorine Free Shock 5lb","description":"\u003ch2\u003eSt. Cyr Chlorine Free Shock 5lb\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eGive your pool water a fresh boost with the ST. CYR Chlorine Free Shock. This oxygen-based oxidizer \u003cstrong\u003eworks quickly to restore sparkling clarity, improve water balance, and support other sanitizing methods without affecting chlorine levels. \u003c\/strong\u003ePerfect for routine maintenance or after a heavy swim day, it’s a simple way to refresh your pool so swimmers enjoy clean, inviting water.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eChlorine-Free Formula\u003c\/strong\u003e – Oxidizes impurities without the harsh smell or irritation often associated with chlorine.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast-Acting Results\u003c\/strong\u003e – Quickly clears cloudy, dull water for a visibly fresher look.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGentle on Swimmers\u003c\/strong\u003e – Won’t cause eye or skin discomfort, making it ideal for family pools.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOdor Reduction\u003c\/strong\u003e – Helps prevent strong chemical smells, leaving your pool more enjoyable.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSupports Sanitizers\u003c\/strong\u003e – Enhances the effectiveness of bromine, chlorine, and mineral systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile Use\u003c\/strong\u003e – Suitable for all pool types, including vinyl, plaster, and fiberglass.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Name: ST. CYR Chlorine Free Shock\u003c\/li\u003e\n\u003cli\u003eWeight: 5 lb container\u003c\/li\u003e\n\u003cli\u003eActive Ingredient: Potassium monopersulfate\u003c\/li\u003e\n\u003cli\u003eApplication: Weekly maintenance or as needed after heavy use\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible With: Chlorine, bromine, mineral systems, and saltwater pools\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42830706606158,"sku":"022-012022P08","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/we73d0nnh5yaueop0pqc.jpg?v=1757263642"},{"product_id":"st-cyr-spa-granular-dichlor-5lb","title":"St. Cyr Spa Granular Dichlor 5lbs","description":"\u003ch2\u003eSt. Cyr Spa Granular Dichlor 5lbs \u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eThe St. Cyr Spa Granular Dichlor is a trusted sanitizer \u003cstrong\u003edesigned to deliver clear, balanced water with minimal effort\u003c\/strong\u003e. This stabilized chlorine formula dissolves quickly and works efficiently to protect your spa from bacteria and organic contaminants, while being gentle on spa finishes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRapid-dissolving granules for quick water clarity\u003c\/li\u003e\n\u003cli\u003eStabilized chlorine formula helps maintain lasting effectiveness\u003c\/li\u003e\n\u003cli\u003eGentle on spa surfaces and compatible with most spa systems\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eHelps control bacteria and organic residue for a cleaner soaking experience\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eConvenient 5lb container provides long-lasting value\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct type: Granular Dichlor sanitizer\u003c\/li\u003e\n\u003cli\u003eContainer size: 5 pounds\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eApplication: Spa and hot tub water treatment\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eDissolves quickly without clouding water\u003c\/li\u003e\n\u003cli\u003eStabilized to resist breakdown from sunlight\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThis spa sanitizer offers an easy and efficient way to maintain sparkling water, so you can relax and enjoy every soak with confidence.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42837996699726,"sku":"022-003022S08","price":52.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/yck6k2pipnzeiks8ispq.jpg?v=1757264425"},{"product_id":"st-cyr-60-algaecide","title":"St. Cyr Algaecide 60 1qt","description":"\u003ch2\u003eSt. Cyr Algaecide 60 1QT\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSimplify pool care with St. Cyr Algaecide 60, a highly effective formula \u003cstrong\u003edesigned to help you manage stubborn algae growth.\u003c\/strong\u003e With its non-foaming solution, it’s easy to use in all types of pools, from backyard setups to larger recreational areas.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features \u0026amp; Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcentrated formula\u003c\/strong\u003e – Delivers maximum strength for reliable algae control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-foaming\u003c\/strong\u003e – Safe to use without impacting water clarity or circulation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVersatile application \u003c\/strong\u003e– Works in fresh water, salt water, and a variety of pool systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy-to-use liquid solution\u003c\/strong\u003e – Simple pour-and-go method saves time on pool care routines.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced swimmer comfort\u003c\/strong\u003e – Provides clear, inviting water for a more enjoyable experience.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eProduct Name: St. Cyr Algaecide 60\u003c\/li\u003e\n\u003cli\u003eSize: 1 Quart (32 fl. oz.)\u003c\/li\u003e\n\u003cli\u003eConcentration: 60% polyquat active ingredient\u003c\/li\u003e\n\u003cli\u003eSKU: 677000000000\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatibility: Suitable for all pool types, including in-ground and above-ground\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42844698935374,"sku":"677000000000","price":31.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/image.png?v=1756998184"},{"product_id":"st-cyr-alkalinity-5-lbs","title":"ST. Cyr Alkalinity Increase 5lbs","description":"\u003ch2\u003eST. Cyr Alkalinity Increase 5lbs\u003c\/h2\u003e\n\u003cp\u003e(No Returns On Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Alkalinity Increase 5lbs is a granular product \u003cstrong\u003eused to raise total alkalinity in spa or hot tub water, stabilizing pH levels, preventing corrosion, and ensuring comfortable, balanced water for soaking\u003c\/strong\u003e. Its active ingredient is typically sodium bicarbonate, which provides precise control over alkalinity without introducing unwanted additives.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eRaises total alkalinity for stable, comfortable water.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePrevents pH bounce and supports effective sanitation.\u003c\/li\u003e\n\u003cli\u003eReduces risk of corrosion and damage to spa surfaces and equipment.\u003c\/li\u003e\n\u003cli\u003eEasy-to-use granular format for accurate dosing.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible with all major spa and pool sanitizers.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest water before dosing to determine current alkalinity (ideal range: 80–150 ppm for spas).\u003c\/li\u003e\n\u003cli\u003eAdd product: Specific dosage varies by alkalinity level, spa size, and product instructions, but a typical starting point is 1 ounce (about 2 tablespoons) per 400 gallons to increase alkalinity by 10 ppm.\u003c\/li\u003e\n\u003cli\u003eApply directly into spa water with jets running for even distribution.\u003c\/li\u003e\n\u003cli\u003eWait at least 10–30 minutes, then retest; repeat if needed until target alkalinity is reached.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreasing alkalinity with sodium bicarbonate may also raise pH slightly.\u003c\/li\u003e\n\u003cli\u003eAvoid large additions at once; gradual adjustment prevents overshooting target levels.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eProper alkalinity protects hot tub components and helps sanitizer work effectively.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eStore chemical dry and tightly sealed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSt. Cyr Alkalinity Increase 5lbs is ideal for routine spa maintenance, especially after fresh fills or water changes, where alkalinity tends to drop.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42890648059982,"sku":"022-016022P08","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/rmmrwlemoyrvpdvfbkbs.jpg?v=1757603654"},{"product_id":"st-cyr-alkalinity-25-lbs","title":"St. Cyr Alkalinity Increase 25lbs","description":"\u003ch2\u003eSt. Cyr Alkalinity Increase 25lbs\u003c\/h2\u003e\n\u003cp\u003e(No Returns On Chemicals)\u003c\/p\u003e\n\u003ch2\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003eLocal Pick Up Only-Middleton MA Location\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003eSt. Cyr Alkalinity Increase 25lbs is a granular product \u003cstrong\u003eused to raise total alkalinity in spa or hot tub water, stabilizing pH levels, preventing corrosion, and ensuring comfortable, balanced water for soaking\u003c\/strong\u003e. Its active ingredient is typically sodium bicarbonate, which provides precise control over alkalinity without introducing unwanted additives.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eRaises total alkalinity for stable, comfortable water.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003ePrevents pH bounce and supports effective sanitation.\u003c\/li\u003e\n\u003cli\u003eReduces risk of corrosion and damage to spa surfaces and equipment.\u003c\/li\u003e\n\u003cli\u003eEasy-to-use granular format for accurate dosing.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible with all major spa and pool sanitizers.\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow to Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest water before dosing to determine current alkalinity (ideal range: 80–150 ppm for spas).\u003c\/li\u003e\n\u003cli\u003eAdd product: Specific dosage varies by alkalinity level, spa size, and product instructions, but a typical starting point is 1 ounce (about 2 tablespoons) per 400 gallons to increase alkalinity by 10 ppm.\u003c\/li\u003e\n\u003cli\u003eApply directly into spa water with jets running for even distribution.\u003c\/li\u003e\n\u003cli\u003eWait at least 10–30 minutes, then retest; repeat if needed until target alkalinity is reached.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Notes\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncreasing alkalinity with sodium bicarbonate may also raise pH slightly.\u003c\/li\u003e\n\u003cli\u003eAvoid large additions at once; gradual adjustment prevents overshooting target levels.\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eProper alkalinity protects hot tub components and helps sanitizer work effectively.\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eStore chemical dry and tightly sealed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSt. Cyr Alkalinity Increase is ideal for routine spa maintenance, especially after fresh fills or water changes, where alkalinity tends to drop.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42890651533390,"sku":"210000003398","price":49.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/ifiu7cbcvnmai6fszpnw.jpg?v=1757603831"},{"product_id":"st-cyr-ph-decrease-3-lbs","title":"St. Cyr PH Decrease 3lbs","description":"\u003ch2\u003eSt. Cyr PH Decrease 3lbs\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr PH Decrease 3lbs is a granular acid product containing sodium bisulfate, \u003cstrong\u003eused to safely lower the pH level in hot tubs and pools when it rises above the ideal range\u003c\/strong\u003e (generally above 7.8). Proper pH balance is essential for clear water, effective sanitization, and preventing scaling or corrosion.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eLowers pH levels efficiently to maintain proper water chemistry\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eHelps chlorine and other sanitizers work at their best\u003c\/li\u003e\n\u003cli\u003ePrevents cloudy water, scaling, and equipment damage caused by high pH\u003c\/li\u003e\n\u003cli\u003eGranular form allows easy and controlled dosing\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eCompatible with all pool and spa sanitizing systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage and Directions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTest your pool or spa water pH before application\u003c\/li\u003e\n\u003cli\u003eIf pH is above 7.8, add St. Cyr PH Decrease following the dosing guidelines on the label (often 12 oz per 10,000 gallons to lower pH from 7.7 to 8.0)\u003c\/li\u003e\n\u003cli\u003eDissolve product in a bucket of water before adding slowly to the spa or pool with circulation running\u003c\/li\u003e\n\u003cli\u003eLet the water circulate for at least 2 hours, then retest and repeat if needed until the pH is between 7.2 and 7.8\u003c\/li\u003e\n\u003cli\u003eHandle with care due to acidic nature and avoid mixing with other chemicals\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eSt. Cyr PH Decrease 3lbs is a trusted product for maintaining balanced, healthy water conditions and ensuring an enjoyable swimming or soaking experience.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42890718937166,"sku":"022-014035P12","price":9.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/PHDecrease.jpg?v=1757607175"},{"product_id":"st-cyr-stabilizer-4","title":"St. Cyr Chlorine Stabilizer 4lbs","description":"\u003ch2\u003eSt. Cyr Chlorine Stabilizer 4lbs\u003c\/h2\u003e\n\u003cp\u003e(No Returns on Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Chlorine Stabilizer 4lbs is a granular pool chemical formulated with 100% cyanuric acid. It acts as an essential pool water additive that\u003cstrong\u003e protects chlorine from being rapidly degraded by the sun’s UV rays, helping chlorine last longer and reducing overall chemical costs.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eShields chlorine from sunlight, significantly reducing chlorine loss\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eIncreases chlorine efficiency and extends sanitizer life\u003c\/li\u003e\n\u003cli\u003eMinimizes the frequency of chlorine additions, saving on chemical expenses\u003c\/li\u003e\n\u003cli\u003eGranular formula for simple, controlled dosing\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eSafe for use in all types of pools, including those with salt systems\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDirections for Use\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eStartup dosage: \u003c\/strong\u003eUse about 2.5 lbs per 10,000 gallons to raise cyanuric acid (CYA) by 30 ppm. Dosage may vary slightly; always test water and adjust as needed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e With the pool pump running, slowly add the stabilizer directly to the skimmer or broadcast into the pool (avoid contact with pool surfaces). Brush any undissolved granules.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWait time:\u003c\/strong\u003e Allow water to circulate for several hours, ideally 24–48 hours before retesting CYA levels. Do not backwash or clean the filter for at least 72 hours after adding stabilizer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal CYA range: \u003c\/strong\u003e30–50 ppm for most outdoor pools. Test your pool’s stabilizer level at the start of the pool season, after water changes, or after substantial dilution from rain or splash-out.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy Use Chlorine Stabilizer?\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eWithout a stabilizer like cyanuric acid, sunlight can destroy up to 90% of the chlorine in pool water within hours. This leads to more frequent dosing, higher chemical costs, and less reliable sanitation. St. Cyr Chlorine Stabilizer protects your chlorine investment and helps keep your pool water sparkling, clear, and safe for swimmers.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42890792861774,"sku":"022-010021P08","price":28.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/chlorinestabilizer.jpg?v=1757607749"},{"product_id":"st-cyr-stain-preventer-1-qt","title":"St. Cyr Stain Preventer 1qt","description":"\u003ch2\u003eSt. Cyr Stain Preventer 1qt\u003c\/h2\u003e\n\u003cp\u003e(No Returns On Chemicals)\u003c\/p\u003e\n\u003cp\u003eSt. Cyr Stain Preventer 1qt for pools is a stain and scale control product \u003cstrong\u003eformulated to prevent and remove unsightly stains and scale caused by metals like iron, copper, and manganese, as well as high calcium hardness, in swimming pools\u003c\/strong\u003e. This type of sequestering agent is especially important when filling your pool with tap water, which may contain these metals and minerals that can discolor water and stain pool surfaces.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features and Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003ePrevents and removes stains caused by iron, copper, manganese, and other metals\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eControls scale buildup and helps eliminate freshly formed scale on pool surfaces\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eProtects pool equipment and surfaces from mineral and metal damage\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli\u003eSupports consistently clear, clean water\u003c\/li\u003e\n\u003cli\u003eRegular use is ideal after filling, topping up, or heavy rain dilution\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUsage and Application\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eAdd Stain Preventer when filling or topping off the pool to sequester metals before adding chlorine or bromine\u003c\/li\u003e\n\u003cli\u003eCirculate water continuously for 24 hours after addition\u003c\/li\u003e\n\u003cli\u003eTypical dosage: 1 quart treats about 10,000 gallons of pool water for initial dosing; refer to label for maintenance dosage and exact application per pool volume\u003c\/li\u003e\n\u003cli\u003eFor ongoing protection, add monthly or as directed, especially in areas with high metal or calcium content\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest Practices\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRun pool filter and circulation during treatment to ensure even distribution\u003c\/li\u003e\n\u003cli\u003eFor pools with existing stains or heavy scale buildup, brushing affected surfaces and using the product in combination with a stain remover can help restore appearance\u003c\/li\u003e\n\u003cli style=\"font-weight: bold;\"\u003e\u003cstrong\u003eMaintain balanced water chemistry and avoid overdosing or mixing with incompatible chemicals\u003c\/strong\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSt. Cyr Stain Preventer 1qt helps reduce maintenance by targeting the root causes of staining and scaling, preserving both the look and longevity of your pool.\u003c\/p\u003e","brand":"St. Cyr Pool \u0026 Spa","offers":[{"title":"Default Title","offer_id":42890792992846,"sku":"022-025013P12","price":22.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/files\/StainPreventer.jpg?v=1757607498"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0600\/7704\/7886\/collections\/15_Off_Winter_Thaw_Flash_Sale_Website_Banner.png?v=1740695605","url":"https:\/\/shop.stcyrpoolandspa.com\/collections\/st-cyr-brand-spa-products.oembed?page=2","provider":"St. Cyr Pool \u0026 Spa","version":"1.0","type":"link"}