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Thread: Opening, but waiting for SWG, and filter cartridge question

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    Join Date
    Jun 2012
    Location
    East Tennessee
    Posts
    19

    Opening, but waiting for SWG, and filter cartridge question

    After accidentally draining half the water mid-winter, I refilled the pool, vacuumed to waste, and added dichlor shock, because it's what we had and I knew it would need more CYA. The water went from pond green to a lovely light blue, but there's a whitish cloudiness to the water. I haven't actually SLAMMed the pool or done an OCLT yet because I haven't made time to go to the store and schlep home lots of jugs of bleach.

    I am having a SWG installed in two weeks. I'm still reading about pool life with a SWG, but my understanding is that the chemistry balance is a little different. I expect I should go ahead and SLAM the pool, but what should I do with the chemistry between now and the installation?

    Also, how do I know when to replace the cartridge filters...the ones I have are 6 or 7 years old, and they are not spraying clean any more. I think it's time... The cloudiness could be a filtration problem, I suppose. And is it ok to order off-brand ones, or will I be better off with Hayward?

    FC 2.5
    CC 0
    pH 7.2
    TA 60
    CH 60
    CYA about 30?
    27,000 gal. IG vinyl
    Hayward cartridge filter

  2. Back To Top    #2
    Richard320's Avatar
    Join Date
    Jan 2010
    Location
    San Dimas, CA (LA County)
    Posts
    20,312

    Re: Opening, but waiting for SWG, and filter cartridge question

    Run your pool as a bleach pool until the SWG is installed. If your CYA is 30, that's perfect for a SLAM. Your pH is already there, so jugs away!

    Raising CYA and adding salt and all the rest is eeeeeasy when the pool is clear. It's just a matter of pouring stuff in. Even being very patient and waiting between additions and all that it can still be set up in an afternoon. Once it's clear, remember.

    I don't have a cartridge filter, so I can't comment on lifespan. If it was me, I'd wait until after the SLAM to replace them. Or at the tail end of it. I'm sure someone who knows will be along to answer that.
    16K freeform gunite with spa; Pentair 4000 DE filter; Century Whisperflow 1 HP; Pentair Minimax heater.
    Troublefree does not mean Maintenancefree. It's like brushing your teeth: You can spend a couple minutes a day and pennies a week or go to the dentist once a year and spend several thousand dollars.
    A pool is like a pet - you have to feed it every day, even the days you don't want to play with it!

  3. Back To Top    #3

    Join Date
    Jun 2012
    Location
    East Tennessee
    Posts
    19

    Re: Opening, but waiting for SWG, and filter cartridge question

    Thanks! That's what I was expecting, and it's just good to get the confirmation that I'm on the right track.
    27,000 gal. IG vinyl
    Hayward cartridge filter

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