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Thread: Replace Multi-Port Valve

  1. Back To Top    #1

    Join Date
    Jun 2016
    Parsippany, NJ

    Replace Multi-Port Valve

    I am a new pool owner and I am replacing a multi-port valve (Hayward SP-710XR50). I have little experience, but have been working on my pool and learning as I go. The part did not bring instructions. The process of removing the bulkhead locknuts from the filter was fairly easy and I anticipate that it will also be easy to attach the new ones to the filter. I am perplexed about how I can remove the existing the fixture from pump and return sections that are connected to the pipes and installing the new fixture. Below is a picture for your reference. Please let me know if you can guide me. I don't know much terminology, but I am a fast learner. Anything you share would be greatly appreciated. Thanks for your help!


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

    Re: Replace Multi-Port Valve

    You cut the old pipes out.

    You can try salvaging things by reconnecting it all with new unions as illustrated

    A few glue-in couplings and some elbows may end up cheaper.
    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!

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