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Thread: pentair pushpull backwash valve stuck

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    pentair pushpull backwash valve stuck

    Hello everyone I am trying to replace either the o-rings or the whole push pull assembly...however I can't get the assembly out of the pvc valve. I have removed the screws on top of the assembly and the screws attaching it to the pvc valve..I don't know how much force to apply to pull assembly out. I would appreciate any ideas on how to get this thing out...I'm assuming it is something to do with the large o-rings being old. The pushpull backwash valve is old Pentair attached to Triton sand filter. Pool built in 1987, it is an inground plaster pool.
    I have inground pool built in 1987. Triton sand pump. Pentair pushpull backwash valve (old style) 273241. 3/4 hp pump.

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    Mod Squad jblizzle's Avatar
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    Re: pentair pushpull backwash valve stuck

    Welcome to TFP!!!

    Sorry you have not gotten any responses, and I am no help. Bumping it up.
    Jason, TFP Moderator
    18k IG pebblesheen pool, Hayward ProLogic P4 w/ T-15 SWG, Pentair 1HP 2-speed Superflo, Hayward 6020 DE filter
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    Re: pentair pushpull backwash valve stuck

    no problem, I had my pool person get it out with brute force, it broke, however most of the assembly was out and it was no problem getting last piece out..But it solved the problem of whether to replace o-ring or entire assembly. thanks
    I have inground pool built in 1987. Triton sand pump. Pentair pushpull backwash valve (old style) 273241. 3/4 hp pump.

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    In the Industry

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    Re: pentair pushpull backwash valve stuck

    Sometimes, that's how you get it out. Its amazing how stuck those pistons can get. An fyi, every 3 months, or whenever the piston starts to get stuck, remove it and lube it.

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    Re: pentair pushpull backwash valve stuck

    Ok. So this is how I removed the valve piston. Embedded in ABS where the SS pin is place is a 5/16 hex head. Used 5/16 socket/ratchet turned CC ones the assembly started to turn I pulled up slightly while turning rachect. Assembly came out no issuea. I lubed orings and reinstalled for now. I believe there is possible issue with orings used. There are different oring material other than what is used on this application. I think it’s EPMD. I might have the acronym wrong. Maybe Kalrez or Teflon incapsulated they are both used in chemical and acid solution environments. I will be installing a Multiport valve instead of replacing the piston assembly. Hopefully that will work better than the Push/Pull Valve. Picture hard to make out but you can see the hex head top of shaft
    Attached Images Attached Images
    Last edited by doityourself; 05-15-2018 at 05:23 PM. Reason: Add picture
    Mike T..
    1997 gunite white plaster 24x36 double kidney shape pool with attached spa ~25,000 gallons.
    Hayward PRO DE 6020, Sta-Rite 2 hp two speed pump, P4 Digital Controller, Navigator cleaner.

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