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Thread: Pentair Piston broken in housing

  1. Back To Top    #1

    Join Date
    May 2017
    Location
    Westminster, MD
    Posts
    4

    Pentair Piston broken in housing

    The backwash valve was broken in the open position, so I have to fix it before I can start treating the swamp.

    It's a Pentair 27-3241 part, and it pulled out easily, but the lowest disk/o-ring at the bottom of the stem is broken off in the housing. What is the best way to remove it? Please tell me I can remove it! I have a really long forceps-style clamp, but I'm hesitant to go poking around without having some idea what to do.

    Thanks in advance for any help,

    Nolly

  2. Back To Top    #2

    Join Date
    May 2017
    Location
    Westminster, MD
    Posts
    4

    Re: Pentair Piston broken in housing

    I took a Maglite out to the pool shed and, lo & behold, the housing is clear. Is it possible that the broken piece blew out the backwash hose? If so, it isn't slowing anything down.

    Ordered a new part from Amazon & it'll be here Sunday. Grandson's pool party coming up!

    Thanks to everyone who uses this forum--it's a winner.

    Nolly
    20,000 gallon, inground, vinyl liner; Hayward pump, Purex Triton DE filter, Frog mineral santizer with chlorine backup.
    In the process of rebuilding a 360 Polaris cleaner on a separate pump.
    27 years tending this pool with professional help for the hard stuff. Pool guy out with a bad back ... help!

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