Sodium Hydrogen Sulphate.
All chlorine based sanitisers become less effective at killing bacteria and viruses as the pH rises (becomes more alkaline). Acid/Alkaline conditions are measured on the pH scale which ranges from 0 - 14. Ideal bathing conditions exist at a slightly alkaline level of 7.2 to 7.6 with Total Alkalinity of 80/140 mg/l (ppm).
Aquasparkle pH Minus is used to reduce the pH level of your hot tub / spa / swimming pool water when it goes above 7.6, it can also reduce Total Alkalinity of your spa/pool water.
This is a 1.5kg tub
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