Reduces PH of Pool, Hot Tub or Spa Water Helps remove limescale and reduces the chance of further build up Fast and easy to use granules. Dosage instructions are included For the best/safest bathing experience always keep your PH between 7.2 and 7.6 as shown on your test kit ...Reduces PH of Pool, Hot Tub or Spa Water Helps remove limescale and reduces the chance of further build up Fast and easy to use granules. Dosage instructions are included For the best/safest bathing experience always keep your PH between 7.2 and 7.6 as shown on your test kit/strips.
Top Quality branded product from Castle Hot Tubs PH Minus is used for reducing the PH level in your hot tub, spa or swimming pool. A high PH level in a pool or hot tub water can cause limescale build up, which can damage working parts including pumps, heaters and seals. To prevent this issue, use PH Minus to bring the PH to between 7.2 and 7.4 on your test kit/strips.