Installing pressure balance valve/system

Discussion in 'Shower & bathtub Forum & Blog' started by gazette, Mar 22, 2005.

  1. gazette

    gazette New Member

    Messages:
    2
    Help, I can't maintain a consistent water temp in my condo shower. Think a pressure balance valve/system might solve the problem?

    If so, what would be involved in changing from a three handle (hot, cold, and diverter) system to a pressure balance one? Am I gonna have to get rid of old handles, tear out tiled wall, etc.?

    Is it even possible with my current configuration?

    Thanks! :confused:
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    First, unless you could get at the back side of the wall, it would involve some tile work.

    Second, if yours is a newer place and was built with balancing valves, it would violate code to regress to a non-anti-scald type.
  3. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,817
    Location:
    New England
    A pressure balance valve is designed for preventing scalding when there is a pressure drop in one side of the supply (somebody flushes a toilet for example) - if you are getting that, then a pressure balance valve will help. If it is that the temp more slowly drifts one way then the other, then a thermostatic valve may help. These also have a pressure balance feature, but allow you to set the desired temp, and as long as there is enough hot, then it will adjust the cold to keep the temp stable. You probably would have to tear out some tile to get to the old valves to install new ones.
  4. gazette

    gazette New Member

    Messages:
    2
    Thanks, further question

    Thanks for your response. There is access to tub/shower pipes from 2 ft x 3 ft door at floor level in next room. Maybe would need access higher than that? Building was constructed in 50s, so doubt that there was much pressure balancing code??

    Assuming it doesn't violate code, this sounds doable and worthwhile then?

    Just trying to get some sense of issues before calling plumber. The view of the guy who checked out a number of units in the building that seemed to have the problem was that nothing building wide seemed amiss, and perhaps installing the newer pressure balance kind of system might help - but "you'd have to rip out a bunch of pipes etc."

    No one seemed to know much about it beyond that though.
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    21,817
    Location:
    New England
    Code for any new construction requires a pressure balance valve for showers. Some (most) places require them on replacements, too (assuming you get a permit). If you install one, you shouldn't have any problems with the inspector based on the type of valve you choose, but you might if you didn't put in a pressure balance one. Can you see the back of the existing valve through that access door? If so, then other than maybe messing up the tile work (and you could be lucky) you should be able to have one installed without major problems. My unprofessional opinion.
Similar Threads: Installing pressure
Forum Title Date
Shower & bathtub Forum & Blog Intermittent low shower pressure after installing new mixer Sep 30, 2008
Shower & bathtub Forum & Blog Installing NobleSeal CIS over Green-Stone Ethical Concrete Jul 8, 2014
Shower & bathtub Forum & Blog Installing a Kohler Acrylic Windward® tub, K-1113 60" x 42" Jun 15, 2014
Shower & bathtub Forum & Blog Del Conca USA launches a Faster Method for Installing Ceramic Tile May 27, 2014
Shower & bathtub Forum & Blog Installing a Linear Drain: Residential Building Magazine Kitchen & Bath Issue 2014 Apr 8, 2014

Share This Page