SLAM - How To Kill Algae Fast

Adjust pH Before SLAM

Set pH to 7.2–7.6 before starting. pH tests are unreliable during SLAM, so wait until FC drops below 10 to test again.

Shock

Use 2x, 3x or 4x the recommended shock dosage based on colour of your pool water.

Test & Adjust

Test water hourly on day 1, adjust chemicals as needed and add shock as needed to keep FC at 10. Continue to test and adjust 2-3 time per day until resolved.

Brush, Vacuum and Backwash Daily

Brush and vacuum pool daily, be sure to brush steps, ladders, skimmers and return jets.

Backwash or clean the filter when filter PSI increases by 25% over your clean filter pressure or once daily.