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I used and used 20 ounces of an algeacide that contains 3.3% copper 10 days ago. Will I be able to use my Nature 2 cartridge this year, and if so, when? The literature that come with the cartridge states that copper renders it useless. I am unsure if the copper will remain in my water or if...

I am trying to recover from an algae take over. My CYA is 0. Took a water sample to the pool store and they did not measure CYA. They are telling me I just need to keep feeding my pool chlorine until it starts to hold. Will my CYA eventually raise on its own by just adding the chlorine to...