H2O COOL pH minus is used to lower the pH value of water. The ideal pH value for a hot tub and pool, with both chlorine and chlorine-free disinfection, is 7.0-7.4. If the pH falls outside this range, the effectiveness of the disinfection decreases and its consumption increases.
At too high a pH (from 7.6), the water becomes cloudy and algae form, and irritation of the conjunctiva and skin may also occur. Regular pH adjustment prevents these problems.
