Symmons Temptrol cartridge:

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by clipperskipper, Jul 13, 2010.

  1. clipperskipper

    clipperskipper New Member

    Messages:
    2
    Location:
    Cape Cod, MA
    Tenant threw us this one today, 20 year old Symmons Temptrol hard to turn. When I arrived handle and splined end of cartridge broken off, so off to the plumbing supply for a T10 cartridge, and a new cap, easy right? So I unscrew the whole thing together and turn the water back on, works great except I cannot turn the water off at the tub, wtf? So I screw the T-10 and compare with the old, the difference being the thick rubber gasket on the old cartridge that mates to the outer (cold?) seat, vs. the new T-10 which has a steel washer with a rubber center. I have heard of the seats being a problem, and actually recalled some years ago? Would a seat change do it? Thanks!
  2. Redwood

    Redwood Master Plumber

    Messages:
    7,453
    Location:
    Connecticut
    Yes, the seats are probably the problem.

    Search Symmons Temptrol here I have posted info on changing seats.
  3. clipperskipper

    clipperskipper New Member

    Messages:
    2
    Location:
    Cape Cod, MA
    We got it done first thing, I grabbed a complete Temptrol at HD last night, along with the Simmons seat tool, very slick. I removed the cold seat and low and behold, stuck inside was the steel washer from the original cartridge, split and corroded. I changed both seats, the cartridge and cap, good as new. I would never recommend changing one without the other since the seats take a lot of abuse and were fairly beat up.
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