Black Out 1LDescription: Black Out is a highly concentrated algaecide for treatment against stubborn algae. "Black spot" algae appear when a pool has been neglected i. e. inefficient filtration and circulation, pH testing and or chlorine levels have not been maintained regularly. Dosage and Directions for use: Use 250ml per 10 000L of pool water. Pour the contents of this bottle into the pool at the inlet where the water jets into the pool. Do not allow swimming
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