- Dilute in a bucket with at least nine parts of water before applying.
- To remove black deposits: Brush areas vigorously with a stiff or special algae brush immediately prior to application. This will help break up the black algae colonies that have formed.
- Apply Black Algaetrine (12 oz. per 10,000 gallons).
- Brush again once each day for two days following application. Remove any settle algae by vacuuming. Reapply treatment if necessary








