St. Cyr's Spa Water Balance Kit – PH/Alkalinity Up and Down Plus Calcium

St. Cyr's Spa Water Balance Kit – PH/Alkalinity Up and Down Plus Calcium

(No Returns on Chemicals)

St. Cyr's Spa Water Balance Kit delivers everything needed to fine-tune pH, alkalinity, and calcium hardness for crystal-clear, safe hot tub water that protects equipment from corrosion or scaling. This all-in-one bundle safeguards your spa investment with precise adjustments that keep chemistry stable soak after soak.

Essential 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.

Key features and benefits

• Comprehensive coverage for pH up/down, alkalinity control, and calcium boosting.
• Generous sizes handle multiple adjustments per fill—ideal for 300-500 gallon spas.
• Fast-dissolving granules mix easily with no clumping or residue.
• Cost-effective starter or refill for ongoing water care routines.
• Supports all sanitizer types, from chlorine to minerals.

Kit contents

• 2lb pH/Alkalinity Increaser 
  
• 3lb pH/Alkalinity Decreaser
  
• 2lb Calcium Hardness Increaser 
  

Usage guidelines

• Test water first, then add small doses with jets running—recheck after 4-6 hours. 
• Target pH 7.4, TA 80-120 ppm, calcium 175-225 ppm for vinyl/fiberglass spas.