AquaDoc Copper Algaecide for Swimming Pools - 90 Day Formula, 128 oz | Non-Foaming, Non-Staining Algaecide for Inground & Above Ground Pools, Works with your Chlorine Routine - Made in USA

90 Day Algae Control - AquaDoc Double Whammy is a copper-based algaecide for pools made to help prevent algae growth for up to 3 months when used as directed, supporting lasting algae control in balanced pool water.

For Use Against Common Pool Algae - Formulated for use against blue-green, green, yellow, mustard, and black algae when used as directed. For stubborn algae, added steps such as brushing, shocking the pool, adjusting pH to 7.2, and sufficient filtration are recommended for best results.

Non-Foaming, Non-Staining Formula - Made not to foam or stain, helping keep pool surfaces looking their best. Suitable for all pool types, including inground and above ground pools. Dilute in a bucket of pool water before adding to pools with plaster finishes.

Helps Reduce Chlorine Demand - Formulated to reduce chlorine demand when used as directed, pairing with your regular sanitizer as part of routine maintenance. Keep your chlorine or other sanitizer at its normal level; this algaecide works with your sanitizer, it does not replace it.

Easy Dosing - Apply 16 fl oz per 10,000 gallons of pool water for algae prevention, or 32 fl oz per 10,000 gallons for severe algae. Follow the label for complete dosing directions.