PH- Minus Total Alkalinity Reducer 1.5kg Swimming Pool Hot Tub Spa Decreaser TA
Tal Alkalinity Reducer. PH Minus is also used to decrease the Total Alkalinity of your Spa, Hot Tub or pool water. Use this high quality PH Minus to decrease the PH value of the water in your spa (7.2 to 7.6 is the optimum for spas).