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Thread: Hayward vs. Pentair chlorinator

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    Hayward vs. Pentair chlorinator

    Hi, currently I have the Hayward inline chlorinator CL200 and it is about 3 years old. Right now, the O ring in the cap needs to be replaced. I talked to a couple of the local pool stores about buying an O ring replacement. They mentioned the Pentair Rainbow 320 is a better chlorinator than the Hayward from a maintenance perspective. Does anyone have any experience with the Pentair 320? Is it easy to install? All thoughts are welcome. Thanks in advance.


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    spishex's Avatar
    Join Date
    Oct 2008
    Hillsborough, NC

    Re: Hayward vs. Pentair chlorinator

    The 320 is a much better chlorinator. All the parts, especially the valve, are much more serviceable and the lid isn't over-engineered. The only downside vs. the CL200 is that you can't use sticks which is no big deal. Installation is easy, just 1-1/2" slip on each side.

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    Re: Hayward vs. Pentair chlorinator

    I second that. We sell both chlorinators and the Pentair is much less trouble prone and repair parts are readily available in case of a problem and user serviceable!

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    fofa's Avatar
    Join Date
    Sep 2008
    Houston, TX

    Re: Hayward vs. Pentair chlorinator

    I didn't like the fact on my Hayward chlorinator I had to replace that stupid O-ring about 4 times a year. Up side was my PS had generic ones that outlasted the Hayward ones and cost about half as much. The chlorinator worked well for 5 years until I replaced it with a salt system. But if I had it to do over again I would go with the Rainbow. My neighbors is over 10 years old and still going strong.
    30,000 Gallons, Hayward C5030 cartridge filter, IG, Plaster, SWG

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