yes, but you have to give be vigilant about keeping the FC up. An algae outbreak at those high CYA levels would be difficult to eradicate.Really frustrating. Did complete test this morning and CYA is about 140. FC is 10.0, ph=7.6 and TA=100. Water looks great so my question is can I live with this CYA and let time/refills deal with it as long as I keep the FC up? I just can't drain half of the water in the pool in N. California. Thoughts? Thanks. (the background here is that the unnamed pool store had me shocking once a week with their "bags" before I found you folks. I don't go there anymore) Also, Orchard Supply has bleach on sale today only for $2.99 per gallon, BOGO so $1.50 each...today only)
Unfortunately water replacement is the only way to lower CYA. What's your water supply situation like? If I were in your position, I'd replace half of my water.I added a gallon of Clorox and a little squirt of MA to soften the ph. The water still looks great. I haven't had any pucks, sticks or anything other than liquid in this pool for over 5 months now. What's the opinion?...is draining the only answer for this? Thanks.
You can do several smaller replacements over time, but again I don't know what you pay for water, or if there's any fines for dumping pool water.Northern California so replacing water is not the socially acceptable thing to do in these parts.
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Trying to keep FC above 11.
You're doing good. Keep plugging away on replacing water while keeping the higher FC level.I drained for approximately 3hrs Saturday using garden hose then refilled. Also had two 12 year olds going crazy for a couple of hours splashing water. I'm making some progress...today's readings are FC=10.5, CC=0, TA=100, PH=7.7, CYA=110 (checked twice). Will add 1/2 gallon of bleach today, water still looks great. PoolMath still says replace 50% but I can't do that all at once. Am I on the right track? Any long term effect in using so much chlorine? Thanks.