Pool Care >> Troubleshooting: Algae

Troubleshooting: Algae

Cause Immediate Corrective Action Preventive Follow-up
For Green or Black Algae, or Pink Bacteria
Low chlorine
Poor circulation
Check filter for proper operation and clean if dirty.

Use Sustain Shock Treatment according to label directions.
Maintain 1-3 ppm Free Available Chlorine (FAC). Re-dose Shield if <1.5 ppm. Adjust water return lines to improve circulation if needed.
For Yellow (Mustard) Algae Use an ammonium-based mustard algaecide with Sustain Shock Treatment according to label directions.