For when you need to lower the pH value of your hot tub to the required 7.2 to 7.6. Also used as a Total Alkalinity reducer.
Lowers pH level
Promotes bather comfort
Reduces Total Alkalinity
The ideal pH levels are between 7.2-7.6, promoting bather comfort, optimum chemical efficiency and protection of Hot Tub equipment. Test the pH of your water, and if it is above 7.2, use pH Minus to lower it.
Pre-dissolve the product in a clean plastic container at a maximum rate of 100g of product per 2.2 gallons (10lts) of clean warm water. Stir well to ensure product is fully dissolved. Carefully add the resulting solution to the pool whilst the pump(s) are turned on, preferably near to the water inlets to aid distribution.
After a minimum of 8 hours, recheck the pH level and if necessary repeat the treatment until the ideal pH is established. Please note a number of treatments may be required.