It's possible that the CYA was bleached out on your test strips. First step is to get a real test kit - FAS DPD if possible otherwise DPD test - either Ben's or a Taylor test kit.
Re: pool green - chemical imbalance?
It's possible that the CYA was bleached out on your test strips. First step is to get a real test kit - FAS DPD if possible otherwise DPD test - either Ben's or a Taylor test kit.
Outside of Philadelphia, PA
18' x 40' IG - 22K gallons
Sylvan Gunite Pool (1979)
Plaster re-done (1997)
48 Sq Ft Hayward D.E. Filter (2003)
1.5 hp Hayward Super Pump (2006)
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