500g / 1Kg / 2Kg / 5Kg / 10Kg/20kg Chlorine Granules Hot Tubs Spa Swimming Pools

This way you can see much better when the granules have dissolved fully. Chlorine Granules. To increase Chlorine levels by 1ppm add 2g of granules per 1000 litres of water (e.g 14g for 7000 litres of water).

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