mixet shower valve

Discussion in 'Shower & bathtub Forum & Blog' started by ldf, Apr 26, 2008.

  1. ldf

    ldf New Member

    Messages:
    3
    I need to replace the cartridge in my mixet shower controls..Without turning off the water, I unscrewed everything, except that the cartridge came apart. the piece I removed had a threaded shaft like a bold at the end. the other part remained in the rough valve.

    do I need to call a plumber to get this piece out ?? Is it a big deal to replace the cartridge ???

    [​IMG]
    Last edited by a moderator: Feb 25, 2014
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,304
    Location:
    Cave Creek, Arizona
    mixet

    I have no idea what you are talking about. How did you take it apart without turning off the water? What is a "bold"? What piece is still in the valve? If you have the older style it had a brass "adapter" between the valve body and the chrome retaining sleeve. There are two different versions depending on whether it is a fine or coarse thread.
  3. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,824
    Location:
    New England
    Once the cartridge IS out, without turning off the water, you'll be taking a funky shower.
  4. Verdeboy

    Verdeboy In the Trades

    Messages:
    2,051
    In other words, shut off the water to the shower if possible or shut off the main. Then you can fool around with that cartridge.

    Why are you wanting to change the cartridge anyway?

    Not enough hot water?
    Inconsistent water temperature?
    Inconsistent volume?
    All of the above?

    Changing the Mixet cartridge doesn't always solve the problem. There's a 50/50 chance you'll need to replace the entire shower manifold.
  5. westcoastplumber

    westcoastplumber Plumbing Contractor

    Messages:
    115
    Location:
    los angeles
    take a picture, I had a customer break a mixet off in the valve and he had the water still on :eek:

    we need pictures:D:D
  6. ldf

    ldf New Member

    Messages:
    3
    bold=bolt. The reason I think I need to change the cartridge, is that the existing one is 30 years old and I am having a difficult time turning on the water. Without turning off the water supply, I removed the volume control, the tempature control, face plate, and the retainer nut. Then I unscrewed the cartridge/pulled it out. The botton or rear end of the cartridge remained in the rough-in valve. I am told that this is not uncommon, that the hard water caused calcium deposits to freeze that end of the cartridge. And the water pressure did not flush out the stuck part of the cartridge.
  7. ldf

    ldf New Member

    Messages:
    3
    a picure will not show anything....the cartridge came apart, and the part that had the o ring on it, remained in the rough in valve.( frozen due to calcium deposit build-up I guess) I put it all back together again, including the retainer nut until I purchased a replacement cartridge at home depot. I have this fear that when I shut off the watersupply, and pull out the entire cartridge, that I may damage the rough in valve, and then must keep the water supply turned off until it is replaced by a plumber.
  8. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego

    give that pic a try.....photobucket is good.
  9. Verdeboy

    Verdeboy In the Trades

    Messages:
    2,051
    If you are replacing a cartridge, you should already have had the replacement on hand before you started messing with it, especially since you apparently don't have separate shut-offs for your shower.

    In the meantime, put some white vinegar in a spray bottle and spray the heck out of the stuck part.

    If that doesn't work, pick up a can of PB blaster at the autoparts store and try that.
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