Shower Mixing Valve or Tank not putting hot water through

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by kwspears, Dec 28, 2011.

  1. kwspears

    kwspears New Member

    Messages:
    4
    Location:
    Chesapeake, Virginia
    I have a shower that can't get beyond luke warm. Sink next to it gets plenty of hot water. I have sterling fixtures throughout and the house is about 15 years old. I changed out the mixing valve, but that didn't completely solve the problem. I can finally get medium warm water if I let it run for 5 minutes, and then, every once in a while full hot water comes through (not good if you're in the shower!). Attaching 2 pictures. Do I need to replace the mixing tank/fixture behind the valve, clean something out somehow, or something else? Trying to avoid the major plumbing bill if I can.... IMG_1382 (598x800).jpg IMG_1377 (598x800).jpg
  2. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,680
    Location:
    Cave Creek, Arizona
    Do you have a hot water circulation system and pump? That valve does not appear to have a "temperature limiting stop", so if everything else is proper, you should get maximum hot water when it is turned all the way to the left. BUT, a malfunctioning circulation system CAN produce your symptoms.
  3. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    The piece with the word "up" on it is the balancing spool. Pull it out with needle nose pliers, and replace it.
  4. kwspears

    kwspears New Member

    Messages:
    4
    Location:
    Chesapeake, Virginia
    I don't. Hot water works fine everywhere else.
  5. kwspears

    kwspears New Member

    Messages:
    4
    Location:
    Chesapeake, Virginia
    Thanks for the information on the balancing spool! Will give that a try. Is it there any trick to pulling it out? (Trying to avoid a Tim the Toolman moment!).
  6. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,680
    Location:
    Cave Creek, Arizona
    Actually, it is the whole cartridge, and the "trick" is to have a new one on hand BEFORE you remove the old one.
Similar Threads: Shower Mixing
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Rinnai Bath Fill Mode with Shower Mixing Valve? Mar 23, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Clogged KWC shower mixing valves Sep 28, 2012
Plumbing Forum, Professional & DIY Advice, Tips & Waterworks, Sigma, Can't identify faulty shower mixing valve? Jan 25, 2012
Plumbing Forum, Professional & DIY Advice, Tips & How To Fix Poor Water Mixing in Shower Dec 19, 2007
Plumbing Forum, Professional & DIY Advice, Tips & Damsel in distress! Shower trim boo boo Thursday at 9:17 AM

Share This Page