Applied Biochemists®
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Yellow Slime

Possible Cause Solution Preventative Maintenance

Mustard algae

Use Swimtrine® Plus algaecide (3 fl. oz. per 10,000 gallons). Use Gold-N-Clear® clarifier (1 fl. oz. per 6,000 gallons) to remove dead algae.

Add Swimtrine® Plus algaecide(1.5 fl. oz. per 10,000 gallons) every 2 weeks to prevent regrowth.

Yellow deposits/growth Use Yellowtrine® algaecide (4 oz. per 10,000 gallons) to clear away mustard algae from walls and pool floor. Use Gold-N-Clear® clarifier (1 fl. oz. per 6,000 gallons) to remove dead algae so that it can be filtered out. Add Yellowtrine® algaecide (2 to 4 oz. per 10,000 gallons) weekly to prevent mustard algae from returning.