Blue Horizons 200g Chlorine Tablets are an easier way of maintaining chlorine levels in your pool water, 200g chlorine tablets are placed in the skimmer, floating dispenser or chlorine feeder (trichlorinator). When dosed via the skimmer the tablet(s) will dissolve slowly over a 3 to 4 day period, the rate at which they dissolve will vary depending upon water flow and temperature. They have a high level of available chlorine and contain chlorine stabiliser. Please refer to the Blue Horizons Pool Care guide for further product information in our downloads section. Blue Horizons 200g Chlorine Tablets Application Instructions: Floating Dispenser: Fill the Trichlor floating dispenser with tablets and adjust the aperture mechanism at the bottom of the dispenser to obtain the 1-3mg/l (ppm) desired range. Alternatively keep the dispenser aperture constant and vary the tablets inside to achieve 1-3mg/l (ppm). The dispenser should be removed from the pool whilst swimmers are bathing.