How to Decrease Alkalinity in Hot Tub

If you are wondering how to decrease alkalinity in hot tub water without damaging your equipment, the solution lies in carefully lowering the pH using specific spa chemicals. The most common product used is a pH decreaser, typically made from sodium bisulfate or muriatic acid. Always add small amounts at a time while the circulation system is running. Allow the water to circulate for at least 20 to 30 minutes before retesting. This gradual approach prevents sudden chemical swings that could harm surfaces or internal components. Chinook Hot Tubs and Saunas recommends testing your water regularly using high quality test strips or digital testers to maintain accurate readings.