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For every 1,000 liters of water 0.016 g of aluminum sulfate 0.013 grams of light soda ash 0.010 grams of granulated chlorine Beat the aluminum sulfate dissolved in the water for 15 minutes Beat the light soda ash dissolved in the water for 15 minutes Finally beat the chlorine for 2 hours, turn off the pool water circulation and let it rest; decant... for 12 hours or up to two days Vacuum the pool and set the pool to filter for 2 hours