Re: Cannot maintain FC levels w/ BBB
Usually chlorine consumption goes down with high CYA. I wonder if you don't have an algae bloom trying to start. Do you have the K-2006? Do you have a CC level?
The overnight test is definitive for chlorine demand. Measure FC and CC in the evening close to sunset. Repeat the FC and CC tests the next morning close to sunrise. If you have CC or you lose more than 1 ppm FC overnight, there's something in the pool being oxidised.
Last edited by BigDave; 06-27-2014 at 04:24 PM.
Reason: Fix Spelling - "consuprion" - sheesh!
12'x24' oval 7.7K gal AG vinyl pool; ; Hayward S270T sand filter; Hayward EcoStar SP3400VSP pump; hrs; K-2006; PF:16
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