Bestway® Clearwater™ 460kg Fast Action Tablets are an incredibly simple way to maintain precise chlorination levels in pool water, which in turn helps to create a healthy and properly regulated swimming environment. The rapidly dissolving water treatment tablets can be added to a chemical floater, to tweak chlorine levels in double quick time, should the amount of free chlorine drop below the recommended levels. They're also beneficial as they have minimal impact on pH levels. Each Tab raises chlorine by 1.5mg per 1,000 litres (220g). As with all chemical products, instructions and warnings should be carefully read and followed.