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Amazon.com : Liquid Chlorine Pool Shock - Commercial Grade 12.5% Concentrated Strength - 2 Gallons : Patio, Lawn & Garden
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Amazon.com : Champion Pool Shock - Ready To Use Liquid Chlorine - Commercial Grade 12.5% Concentrated Strength - 1 Gallon : Patio, Lawn & Garden
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Algae starting to grow on deep end walls. What should I do? Already shocked + liquid chlorine : r/pools
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