Getting ready to do a absorbic acid treatment..

[Themacdadt]

After reading all about the AA process. I am unclear if I need to remove my cartridge filter?

 

[ajw22]

Ascorbic Acid Treatment - Further Reading

www.troublefreepool.com

4. Put the filter on circulate if you have a Multi-Purpose Valve(MPV) on your filter. If you have a cartridge filter then remove the cartridges.

Putting the filter on recirculate or removing the filter cartridges helps avoid the small chance of coating your filter media with metals, which might end up forcing you to replace your filter media. This doesn't usually happen, even if the filter isn't on recirculate, but best to avoid even the small chance of a problem by using recirculate or removing cartridges.