SpaGuard Total Alkalinity Increaser - 2 Pounds
Total Alkalinity Increaser raises total alkalinity in hot tub water. Low total alkalinity may cause spa water to be corrosive to metal causing staining, etching or distorting of hot tub surfaces. Proper alkalinity reduces "pH bounce" by buffering the water against undesirable pH changes. Total Alkalinity should be maintained in the range of 125 to 150 ppm.
- Sodium Hydrogen Carbonate 100%