Look no further than Relax Non-Chlorine Shock Granules. Relax Non-Chlorine Shock can be used to shock dose pools which use all types of chlorine as a sanitiser without boosting chlorine levels. Start by maintaining pH levels within the ideal range of 7.2 to 7.6 and free chlorine levels between 1 to 3mg/l for pools and 3 to 5mg/l for spas.
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