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Thread: When to replace cartridges? (and a couple other questions)

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    When to replace cartridges? (and a couple other questions)

    I have a Hayward 1 HP pump and use cartridge filters. How often should the cartridges be replaced? I know the existing cartridges have been in there for at least 3 years.
    I have 4 new cartridges to replace the old ones. Should they be soaked before use?
    And my last question: Where can I find replacement parts? The brass nut that holds the clamp around the canister is stripped. I went to the pool store and the guy told me that Hayward discontinued them. I went to Home Depot and they didn't have anything even similar. I tried to use a regular nut, but I can't push the clamp together enough to get the bolt to stick out the end of the spring so I can get the nut on. Any suggestions?
    Obviously, I can't run the pump without the clamp around the canister. I just spend a week clearing the pool up and I don't want to have to start all over again.
    12K gal, IG pebble, 1HP Hayward cartridge filter C4020CP, waterfall, Hayward basic automatic vac.

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    JasonLion's Avatar
    Join Date
    May 2007
    Silver Spring, MD

    Re: When to replace cartridges? (and a couple other question

    Cartridges can last quite a while if you take good care of them. If there aren't any tears in the fabric and the fabric hasn't gotten stiff you can keep using them for quite a while.

    Obscure parts are often easier to find on the internet. There are several companies that specialize in keeping strange pool parts in stock.
    19K gal, vinyl, 1/2 HP WhisperFlo pump, 200 sqft cartridge filter, AutoPilot Digital SWG, Dolphin Dynamic cleaning robot
    Creator of PoolMath and Pool Calculator. Other handy links: Support this site, TF Test Kits, Pool School

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