Low hot water pressure with Mixet shower/tub faucet

Discussion in 'Shower & Bathtub Forum & Blog' started by jchez, Aug 17, 2007.

  1. jchez

    jchez New Member

    Aug 17, 2007
    Please help! I have a shower/tub with a Mixet single handle faucet. When I first moved into my home the water pressure was fine in both bathrooms. After about a year, the hot water pressure was greatly reduced (although this did not happen at the same time in both bathrooms). The hot water pressure is fine in all other parts of the house and even in the sinks of the same bathroom. The cold water pressure is strong as can be. I've replaced the stem/cartridge and still have the same issue. Could this be a problem with the valve itself? If so, how difficult is it to change to a different valve? Maybe a Moen.

    Thanks in advance!

  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Sep 2, 2004
    Retired Systems engineer for defense industry.
    New England
    Is this on the shower or tub filler? If it is the shower, it could be some crud in the inlet screen...remove the showerhead and look. While you have it off, try running water through the shower arm to see what kind of flow you have. If this is a well-used shower and your water is hard, the nozzles in the spray head of the shower could be clogged with calcium deposits. depending on the showerhead, you might soak it in vinegar overnight. If it is clogged in this manner, and the showerhead is old, and plastic, you might want to replace it.

    If you don't get good flow out of the shower arm, somebody will have some other things to suggest.
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  4. jchez

    jchez New Member

    Aug 17, 2007
    The pressure is low from the shower head and the filler. We actually replaced the shower head not long ago hoping this would correct the problem.
  5. Peanut9199

    Peanut9199 Customer Service Manager Plumbing Wholesale

    Apr 23, 2007
    Customer Service Manager Plumbing Wholesale
    Ontario, Canada
    The Mixet should have check stops one for hot and one for cold.
    Check the hot water check stop to see if maybe it is plugged.
  6. jchez

    jchez New Member

    Aug 17, 2007
    Thanks! I will try that.
  7. Verdeboy

    Verdeboy In the Trades

    Jun 12, 2006
    Click on this link:
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