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PristineCheck is a product in the PristineBlue Chlorine-Free Water Sanitation System.

PristineCheck is added to your pool at start up, each Spring opening and each time the pool is topped up with hard water. It prepares your water to receive PristineBlue by sequestering calcium out of the pool water to the filter which is then backwashed before PristineBlue is added to the pool. Initial dose for swimming pools is just 160 mls per 10,000 Ltr (2200 imp gal) water volume and for spas 16 mls per 1000 litres spa water volume.

This product also can be used to reduce calcium hardness in pools which are sanitised using other systems (including chlorine or bromine).