Relax Spa Hot Tub Granular Shock Chlorine

Relax Granular Shock Chlorine is highly effective at destroying contaminants in water (such as bacteria and body oil) from your spa water. 

Shock or ‘Super Chlorination’ is necessary when you first fill or re-open a hot tub. It is also good to shock treat your hot tub every 2 weeks or more often if heavily used.

Contains calcium hypochlorite (avg 70% active)

FAQs

Does this work in swimming pools?

Yes, this product is excellent in swimming pools as it is a very strong shock and is able to clear cloudy, green or dirty pools.

How much do I need to add?

To raise chlorine by 10ppm in a 1,000 Litre hot tub, use 15g. See the directions for use tab for full dosing instructions.