Purisan Spa pH Reducer - 1.5kg. Test the pH of your spa water and if it is above 7.6, use AquaSPArkle Spa pH Minus to lower it. Spa pH Minus can also be used for lowering Total Alkalinity if it rises above 150mg/l (ppm).

Ideal pH Range: 7.2 – 7.6

Application Instructions

1. Pre-dissolve the product in a clean plastic container at a maximum rate of 10g of product per 0.2 gallons (1ltr) of clean warm water. Stir well to ensure product is fully dissolved. Carefully add the resulting solution to the spa whilst the pump(s) are turned “on”. If you are reducing Total Alkalinity, pour the solution in one area in the middle of the spa.
2. After a minimum of 30 minutes, recheck the pH/Total Alkalinity level and if necessary repeat the treatment until the ideal pH/Total Alkalinity is established.

pH Dose Rates

Litres                                   Gallons                              Dose Rate

1,000                                       220                                      11g

1,500                                      330                                      17g

Alkalinity Dose Rates

Litres                                   Gallons                             Lower Alkalinity 10mg/l               Lower Alkalinity 25mg/l 

1,000                                       220                                            25g                                                 63g     

1,500                                      330                                             38g                                                 95g

Please note: a number of treatments may be required.