An innovative 250g Multifunctional Chlorine Tablet. Incorporates a fast dissolving 50g top for a chlorine boost and a slow release multifunctional 200g base that chlorinates, clarifies, and helps prevent algae. For skimmer/floating dispenser application only. Key Features: 250g Stabilised chlorine tablet, Quick release blue top for chlorine boost, Slower eroding bottom (6-10 days depending on water flow), Contains clarifier & algaecide. Ideal free chlorine range: 1 - 3mg/l (ppm). Before use, adjust pH to the ideal range of 7.2 – 7.6. These tablets provide fast dissolving shock (blue) followed by longer term disinfection (white) over 6 – 10 days depending on water flow. Application Instructions: WARNING – DO NOT ADD DIRECTLY TO A POOL AND ALWAYS USE A CLEAN APPLICATOR AS BELOW WITH NO OTHER PRODUCTS PRESENT. Skimmer: Initial Dose: Place 2 tablets in a clean & empty skimmer basket per 22,725 litres (5,000 gallons) of pool water. Routine Dose: Place 1 tablet in a clean & empty skimmer basket per 22,725 litres (5,000 gallons) of pool water every 6-10 days. Floating Dispenser: Place tablet(s) in a floating dispenser and adjust the aperture mechanism at the bottom of the dispenser to obtain the ideal chlorine range of 1 – 3mg/l (ppm). Remove the dispenser from the pool while swimmers are bathing. Chlorine Feeders: Not suitable for this application. Note: It is recommended to periodically (e.g. weekly/fortnightly) shock or oxidise your water using Blue Horizons Pool Fusion, Granular Shock, Rapid Shock or Shock ‘n’ Floc.