Lowering CYA

YippeeSkippy

Mod Squad
LifeTime Supporter
Jan 17, 2012
14,972
Evans, Georgia
BUT!....that's assuming your CYA is truly at 100. Did you perform a dilution test to determine that? That's where you mix equal parts pool water and tap water, mix well, and use that as your pool sample. Double your result for a high CYA level.

Maddie