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    Using more than one air pillow to keep water off?

    My pool is 18 round and was thinking of using 2 4x8 pillows this year and not draining below skimmer. The idea is to keep water from pooling on and subsequently leaching through the cover. I bought a brand new (not cheap) solid cover last year and water still leached through. So I was pumping...
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    Hayward perflex ec65a. No need to backwash?

    I have this filter, nowhere can I find a reason to backwash unless the pressure keeps rising after bumping then they recommend replacing the DE. My filter pressure has never risen more than just a couple psi over an entire season. Never even have to bump according to the directions on the...
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    Adding CYA, want to use dichlor, math help.

    Been filling my pool a lot last couple weeks, it's been dry and windy. Cya is down to around 30 but I think less than 30. I'd like to bump it up 10ppm . I have 1lb of 99% dichlor and I also have dry stabilizer. Dichlor would be easier to just add it to the pool no pre mixing. Pool is 7600...
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    Forgot to lower pH before starting SLAM

    So my pH was 7.8 before starting slam Ave I neglected to lower it. I was in a bit if a rush to get it started before I left home and I didn't realize until almost 2 days later. Would it hurt to throw in some dry acid to bring it down? I know I can't test it now because I'm at shock levels and...
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    Little specs of algae.. mustard?

    Starting last year I had small specs that look like dirt that get caught on creases in the floor of my vinyl liner of my 18' round above ground pool. Last year I thought it was just dirt or something. It wasn't until later in the season when I got green algae bloom that I found out my stabilizer...
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    CYA vs chlorine ratio question

    New member here... First year trying to actually understand my pool. Spent the first 6 years using pucks and ended up with 136ppm cya last season. Drained most of the water and I'm sitting at around 48ppm this year and my pool is about 7600 gallons. (18ft round above ground) I'm using the app...