Re: CYA Only in skimmer?
First step is to get a leaf rake and get the crud out of the pool! You are never going to be able to hold chlorine with organic matter in the pool increasing the chlorine demand!
Broadcasting CYA is not a good idea since it is somewhat acidic. You can put it in an old sock and hang it in the pool or put it in the skimmer basket, which will alloow more of it to dissolve before it hits the filter, if you have to backwash a lot because of an alage bloowm but if you are backwashing because of stuff sitting on the bototm of the pool then GET IT OUT FIRST!
Retired pool store and commercial pool maintenance guy.
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