(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 5 of 5

Thread: Multiple problems with water heater(maybe)?

  1. #1
    DIY Junior Member bcdudley's Avatar
    Join Date
    Nov 2011
    Location
    Texas
    Posts
    15

    Default Multiple problems with water heater(maybe)?

    Just moved into a 30 year old house about 6 months ago. The water heater was installed in 1998. Today, my wife told me she thought the floor felt a little warmer than the rest of the floor right next to the water heater. She was concerned this may be a slab leak. I could not tell any difference and a infrared thermometersaid it was the same temp. I was looking at the water heater and I noticed that the cold water intake was just as warm as the hot water pipe.

    One other thing, the hot water pressure has always been really low since we moved in. If we try to run the bath tub and washing machine (with cold water only), the water coming out of the tap is just a trickle.

    Cold water pressure is generally fine unless we run the sprinkler system.

    I am wondering of there are some crossed pipes or something.

    Any suggestions on where to start?

  2. #2
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,397

    Default

    There are heat traps that can be installed on the hot and cold piping to minimize convection currents that could heat the water, but conduction often wins, regardless of whether the tank has them installed. But, one symptom of a bad or corroded or partically blocked one is low flow. But, you're talking about cold flow, which should have nothing to do with the WH.

    On a older house, (this isn't all that old) some of the piping or at least a connection or two could be galvanized iron pipe. At 30-years, the inside of the pipe could be about the size of a pencil. Plus, if the water gets turned off, then on again, the inrush of the water might dislodge some rust or other crud and plug up aerators and any small orifice.

    Most WH don't last that long, so it may be time to consider a replacement. Slab leaks can be a pain. Double check your water meter, see if it's moving when everything is turned off. You might check before you go to bed, then again in the morning before flushing the toilet or showering.
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

  3. #3
    Moderator & Master Plumber hj's Avatar
    Join Date
    Aug 2004
    Location
    Cave Creek, Arizona
    Posts
    25,633

    Default

    You have more problems that we can diagnose over the Internet. IF the hot and cold pipes are the same temperature, then you do not have an underfloor slab leak. There are several different possibilities for the pressure problems, but we do not know enough about your house to tell which, if any, apply to you.
    Licensed residential and commercial plumber

  4. #4
    DIYer, not in the trades LLigetfa's Avatar
    Join Date
    Feb 2011
    Location
    NW Ontario, Canada
    Posts
    3,679

    Default

    hj is right. If both pipes are warm, there is no leak.

    Quote Originally Posted by bcdudley View Post
    One other thing, the hot water pressure has always been really low since we moved in. If we try to run the bath tub and washing machine (with cold water only), the water coming out of the tap is just a trickle.
    Which water trickles, the hot, the cold, or both? What is the elevation difference between the washing machine and the tub? Upstairs/downstairs?

    I don't know if many water heaters came with heat traps in '98 but if yours has them, sediment could be preventing proper operation which could restrict flow.

  5. #5
    DIY Junior Member bcdudley's Avatar
    Join Date
    Nov 2011
    Location
    Texas
    Posts
    15

    Default

    The house is one story so everything is at the same level. The washing machine is closest to the water heater followed by the sink and then the tub. The low pressure is only on the hot water side unless the sprinkler system is on, then everything is low.

Similar Threads

  1. Multiple homes on 1 water line - pressure problems due to elevation differencess?
    By earthscaper in forum Pumps and Tanks Well Forum & Blog
    Replies: 4
    Last Post: 11-16-2009, 07:00 PM
  2. Problems with GE Hot Water Heater
    By nottick in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 6
    Last Post: 01-22-2009, 02:49 PM
  3. Multiple tub faucet problems
    By Dauber185 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 17
    Last Post: 10-15-2008, 06:46 AM
  4. Help! Multiple hot water problems.
    By ForrestGump in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 11
    Last Post: 05-03-2008, 04:59 AM
  5. multiple water-heater instalation
    By rrich4814 in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 6
    Last Post: 04-19-2008, 03:43 PM

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •