Black Treat is an E.P.A. registered algicide formulated for the killing and
elimination of black algae in chlorine/bromine pools.
Black algae grows on the walls and floor as a black spot that you can scrape
off with your fingernail. It is a colony algae that is very hard to kill. You
must run a continuous preventative program after you have removed the visible
colonies. If none will brush off, look out, you probably have cobalt staining.
Use United's Cobalt Cure for cobalt. Cobalt happens
only on fiberglass or epoxy.
Your black algae will be immediately arrested and after you brush off any
residue, your pool will have superior water clarity. Run your filter to clear it
up.
A 3 lb. bottle will treat 20,000 gallons, and is 2 times as effective as
most of the competitors, and we do it better!
