(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 13 of 13

Thread: Shower Water won't fully exit trap

Hybrid View

  1. #1
    DIY Junior Member kalka2's Avatar
    Join Date
    Jun 2012
    Location
    Northeast Maryland
    Posts
    3

    Default Shower Water won't fully exit trap

    Our shower never fully drains. The water remains standing about 12" down the drain. I am assuming this the trap. I've tried natural and chemical cleaners, and a 50' auger, but there was no change so I don't think this is blockage per se.

    I've tried to fill the drain up further, but that seems to create just enough pressure to push some of the water through. It kind of acts like a toilet - the excess water swirls around the drain and at the end of it all I'm left with the same amount of water, not draining.

    When I use a plunger, I hear the water drain further and at that point I can only see a little trickle at the very bottom of the pipe. So I think what's happening is that there isn't enough pressure from the the normal drainage process to push the water through the trap.

    Any suggestions are welcome!

  2. #2
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,978
    Blog Entries
    5

    Default Shower won't drain

    Please stop messing with your shower drain! It is working just fine. When the water goes down the drain it falls into whats called a PTrap. This PTrap is shaped like a U at the bottom so it can hold water. It does this so the sewer smells don't enter the home.

    If the PTrap drained after use or was installed at the wrong elevation it could drain or partially drain and you would have a nasty smell or funky odor in your home. It's good you cleaned the line and snaked it. But stop - your done!!!



    A PTrap works like this.

    JW
    Last edited by johnfrwhipple; 06-02-2012 at 04:29 PM.


    jfrwhipple@gmail.com - www-no-curb.com - 604 506 6792

    Always get construction advice double checked by your local city hall. Flood Test Every Shower - Every Time.

  3. #3
    DIY Junior Member kalka2's Avatar
    Join Date
    Jun 2012
    Location
    Northeast Maryland
    Posts
    3

    Default

    John - I guess I'm missing something. The next time we shower, the water is just going to fill up again, remain standing, and in a another day we will smell all the bacteria that develops. There has to be another solution, right?

  4. #4
    Test, Don't Guess! cacher_chick's Avatar
    Join Date
    Jan 2008
    Location
    Land of Cheese
    Posts
    3,150

    Default

    Look under any sink in your house and you will see the P-trap. Every drain must have one, and it must hold water to prevent the sewer gas from coming back up the pipe and into the house. The small amount of standing water left in a P-trap does not cause any smell. This is how a home's plumbing has worked for over 100 years.

    Last edited by Terry; 06-02-2012 at 10:30 AM.

  5. #5
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,202
    Blog Entries
    1

    Default

    The only fixture that doesn't have a p-trap below if the toilet, which is incorporates a p-trap within the design. You notice there is always water there, right?

    If you use a wet vac and suck out the water, you will have air from the septic tank filling up your bathroom. The water seal is to prevent sewer gas from entering the home. And those pipes on the roof? Those are venting your sewer gas way up high so the breeze can disperse and take the smells away.

  6. #6
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,978
    Blog Entries
    5

    Default

    Quote Originally Posted by kalka2 View Post
    John - I guess I'm missing something. The next time we shower, the water is just going to fill up again, remain standing, and in a another day we will smell all the bacteria that develops. There has to be another solution, right?
    The water goes down and any extra ounce over what's in there now goes up and over the U shaped piece and down the drain. It does it all by itself and you don't need to do a thing. If you have a floor drain that smells it might just need a glass or two of water in it.

    I have a floor drain in my basement that I flush often to insure it does not dry out. It's a 3" non vented, non primed floor drain. To slow down evaporation you can try adding a little olive oil on top. Extra Virgin is the best... LOL


    jfrwhipple@gmail.com - www-no-curb.com - 604 506 6792

    Always get construction advice double checked by your local city hall. Flood Test Every Shower - Every Time.

  7. #7
    DIY Junior Member Big Chicken's Avatar
    Join Date
    May 2012
    Location
    Nebraska
    Posts
    7

    Default

    Quote Originally Posted by kalka2 View Post
    John - I guess I'm missing something. The next time we shower, the water is just going to fill up again, remain standing, and in a another day we will smell all the bacteria that develops. There has to be another solution, right?
    Do you mean that the shower itself has standing water in it, or was it the trap like others have suggested?

  8. #8
    ACO Shower Drain Sales johnfrwhipple's Avatar
    Join Date
    Jul 2009
    Location
    North Vancouver, BC
    Posts
    2,978
    Blog Entries
    5

    Default

    We need a flip chart here I think. The water that the poster is asking about is in the shower drain line. Not in the shower. There could be water trapped in the shower itself?? - who knows? I think the poster is speaking about the water you can see when looking down a drain and viewing the water in the PTrap. I could be wrong here.



    This is a good cross section that shows a PTrap full of water. I hope this helps.

    JW


    jfrwhipple@gmail.com - www-no-curb.com - 604 506 6792

    Always get construction advice double checked by your local city hall. Flood Test Every Shower - Every Time.

  9. #9
    Retired Defense Industry Engineer jadnashua's Avatar
    Join Date
    Sep 2004
    Location
    New England
    Posts
    21,408

    Default

    If you could see past the stopper in your bathroom sink, you'd see standing water there as well...as has been said, EVERY sink and fixture (a toilet is an exception, but it has water in it you can see) has standing water in it, or at least should. That is what seals the sewer gasses from getting into the house. If you're worried, run some water after your done to help ensure that what's left is essentially 'clean' (it's called grey water once it comes out of the supply line and goes down the drain).
    Jim DeBruycker
    Important note - I'm not a pro
    Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013, 2014

Similar Threads

  1. Water shuts off by itself when valve is fully opened
    By Mikemonica in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 2
    Last Post: 03-30-2011, 09:08 PM
  2. Shower Diverter not diverting fully
    By thebigsee in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 10
    Last Post: 03-25-2011, 07:15 PM
  3. water line issues between shower and hot water tank drain P-trap
    By ns in forum Plumbing Forum, Professional & DIY Advice, Tips & Tricks
    Replies: 5
    Last Post: 03-02-2011, 10:55 AM
  4. Toilet water gets into shower trap - help
    By HellNY in forum Toilet Forum discussions
    Replies: 6
    Last Post: 03-22-2010, 05:08 AM
  5. rear exit toilet
    By indyjps in forum Toilet Forum discussions
    Replies: 5
    Last Post: 09-30-2006, 06:37 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
  •