Although they are effective against many forms of algae, copper algaecides can cause stains on the surface of a swimming pool if the product is not used . Leslies Copper Pool Algaecide quickly eliminates existing algae while . Magnify Product Image. Free Shipping. Leslie's 14018 Copper Pool Algaecide, 1 qt. Super pool algaecide provides first-class algae control at low dosages. Non-foaming formula. Contains 7.1% Chelated Copper. The maintenance dosage of . Metallic Pool Algaecides contain Copper ions, used for thousands of years in water treatment. The copper is chelated or bonded with amino acids to reduce . Amazon.com : In The Swim Super Pool Algaecide - 2 x 1/2 Gallons : Garden & Outdoor. . Roll over image to zoom in . 23.5% Copper Triethanolamine Complex (7.1% Metallic copper equivalent) as the active ingredient; Non-foaming formula. Color: Swim Best Copper Algaecide - 7% (1). Roll over image to zoom in . Rx Clear Swimming Pool 7% Copper Algaecide Algae Chemical 1 Quart (Single). The pool has not been replastered in at least 15-20 years. . No algaecide, no phosphate remover, no copper, no clarifiers. . Any more pics? Aug 8, 2016 - Copper is a preventative and can kill algae as well, but you know what else . 2012 build and pics, 20k gal gunite, black onyx pebblesheen, OK . Jul 3, 2017 - A brand new, freshly-plastered swimming pool turned green from . Because a chlorine shock oxidized the copper-based algaecide and the .