SpaGuard Spa Sentry

SpaGuard Spa Sentry is an easy, one-step liquid for maintaining a stable, comfortable pH and softening your hot tub or spa water. It makes balancing the water extremely simple, eliminating the need for many other water balancing treatments you may currently be using. • Phosphate buffer• pH~7.5• Easy, one step liquid• Helps maintain proper pH• Softens water by removing calcium• Not for use in plaster or tile-surface spas• Not for use in Soft Soak® spas / hot tubs Dosage Calcium Hardness less than 150 ppm: 32 fl oz per 300 to 500 gallons of water. Calcium Hardness more than 150 ppm: 64 fl oz per 300 to 500 gallons of water. Ingredients Phosphate Buffer: 36.3% Other Ingredients: 63.7%