Champion Small Chlorine 20g Tablets dissolve slowly, gradually releasing chlorine over 3 to 5 days. Ideally used in conjunction with chlorine granules for maximum chlorine control. Prior to using this product, adjust the pH levels to the ideal range of 7.2 7.6 to promote bather comfort, plant protection and effective chemical use. These small chlorine tablets are designed for use with floating dispensers or a suitable tablet feeder. They will slowly erode over a period of 3 - 5 days, depending on the water flowing over them. As they release chlorine relatively slowly it may be necessary to shock dose or oxidise prior to their use to first establish some chlorine more rapidly.Chemical Name: Trichloro 1,3,5 TriazinetrionChampion Small Chlorine 20g Tablets Application: Champion Small Chlorine Tablets are slow dissolving and suitable for use in both private pools and small school or hotel pools.Dose Rates: Add 2 Champion Small Chlorine Tablets (14-20gm) to 10 cubic metres of pool water when used in the skimmer basket. The dose rate is offered as a general guide for private pools. Heavily used pools or those maintained at higher temperatures may require increased dosage. Test for actual requirements by using a poolside test kit adjusting the dose rate as necessary to maintain a chlorine level of 1-3 ppm or mg/litre.