Clearwater multi-function chlorine tablets are an incredibly simple way to maintain the clear and hygienic pool or hot tub water. These multi-function chlorine tablets are designed for use with floating dispensers or the Lay-Z-Spa ChemConnect. They will slowly erode over a period of 3 to 5 days, depending on the amount of water flowing over them. These multi-function chlorine tablets are an easy and convenient way of keeping the pool and hot tub water clean. As well as containing chlorine, which kills bacteria and other organisms by disinfecting water, the tablets also contain an algaecide solution that prevents the growth of algae. The chlorine tablets also contain a water clarifier. Some debris and particles that find their way into the water, such as dead skin and algae, are too small to be trapped by the filter system. Clarifier contains flocculants, which bind particles together so that a filter can trap them, producing clean and sparkly water. As with all chemical products, instructions and warnings should be carefully read and followed. Thankfully the container of 1kg multi-function chlorine tablets is clearly labelled with warnings and precautions.