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Robarb's Black Robacide enables users to effectively control and eliminate black algae, as well as other resistant forms of algae from pool surfaces. Infused with Copper-Quat based formulation, Black Robacide works fast to ensure minimal pool downtime without compromising its algae-destroying affects. Compatible with chlorine, bromine, mineral, ozone, and salt water sanitizers.
6 fl pz per 10,000 gallons of water per week.
Visible Algae Growth:
12 fl oz per 10,000 gallons of water.
- Brush algae spots prior to application. If necessary, brush once each day for two days following application.
- Black Roabcide comes concentrated; therefore, dilute the proper dosage of the concentration with at least 9 parts water (i.e. 6 oz. of product to 54 oz. water).
- Apply this diluted dosage through a plastic watering can into the water around the edge of the pool.
- Vacuum away any debris.