Purisan Spa Granular Shock - 1kg. Quick dissolving stabiliser free chlorine granules suitable for shocking and disinfection of spa water. 65% Av. Chlorine. (Please note do not mix with organic chlorine (Trichlor or Diclor) in the same container). 

Application Instructions

1. Maintain pH levels within the ideal range 7.2 – 7.6. If the level is not in this range, adjust.
2. Maintain free chlorine residuals routinely in the 1 – 3mg/l (ppm) range. Shock or oxidising procedures are recommended either weekly or fortnightly with a maximum of 10mg/l (ppm) for a full shock treatment.
3. Pre-dissolve this product in a clean plastic container at a maximum rate of 100g of product of 2.2 gallon (10 litres) in water. Stir well to ensure product is fully dissolved. Add the resulting solution to the spa whilst the pump (s) are turned ‘on' preferably near the water inlets to aid distribution.
4. Repeat dose/application if necessary to achieve the desired level.
5. After using this product spa water may become temporarily cloudy, so keep the filtration pump running until it clears.
6. After shock treatment, allow the chlorine to drop below 5mg/l before bathing recommences, and in any event wait for at least 30 minutes before bathing recommences.

Dosing:

Litres               Gallons              To Increase Chlorine By 1mg/l          To Increase Chlorine 3mg/l           To Increase Chlorine 10mg/l

1,000                   220                              7g                                                             35g                                                      70g

1,500                   330                         10.5g                                                          52.5g                                                    105g