Is this a correct install? Pic of Shower and Toilet Drain installed by local plumber.

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by brianslink, Oct 24, 2012.

  1. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    I hired a local plumber to install the drain and waste vent for my new construction home. This is a picture of a drain area I am concerned with. The shower drain (double shower) on the left starts the run and it continues to a toilet drain on the right which continues on to the main line. No vent. I am afraid when the toilet is flushed it will suck air from the shower trap and gurgle. Am I wrong?

    Attached Files:

    Last edited by a moderator: Oct 24, 2012
  2. Terry

    Terry Administrator Staff Member

    Messages:
    14,943
    Location:
    Bothell, Washington
    Yes. You are right. The shower is not vented. Have the hacks come back out and install a vent on the shower trap arm before it enters the 3" fitting.

    Is there a plumbing permit for this? And if so, does the inspector look in the crawlspace?

    Here is a nice link to Bert Polk's plumbing tips
    Last edited: Oct 25, 2012
  3. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    Thanks for your reply. Yes, I purchased a building permit through my city which includes elect, plumbing, hvac, etc. I do not think the inspector goes in the crawl space though. Here are a couple of pics of another bath at the other end of the house. The crawl space pic is actually two pictures joined together. I also included a photo of the same area topside.

    The drain run starts at the tub/shower and continues to the toilet and then continues to a double vanity. The only vent I see is at the double vanity. Will this work?

    [​IMG]

    [​IMG]
  4. Terry

    Terry Administrator Staff Member

    Messages:
    14,943
    Location:
    Bothell, Washington
    No. That will not work.

    No vent on the shower.
    The vent for the tub/shower needs to come off at the same height as the trap arm. If it's below the trap arm, or after it has turned down towards the ground, it is no longer vented.
    Have them cut in a 2" x 1.5" combo between the p-trap and the 45 and extend the vent up into the wall above.

    Seriously, you've got to be kidding me!

    Here is a nice link to Bert Polk's plumbing tips
    Last edited: Oct 25, 2012
  5. Tom Sawyer

    Tom Sawyer In the Trades

    Messages:
    3,137
    Location:
    Maine
    Does the "local plumber" have a license? I'm betting NOT
  6. boardable

    boardable New Member

    Messages:
    51
    Location:
    San Jose, Ca
    Ok someone correct me if I am wrong. No line can be any more than 5 feet from a vent. AKA if you want to use a single vent stack the rest of the lines can not be more than 5 feet away. You can share one toilet, two sinks, and two bath's or showers on one two inch vent. This is max. The vent in the wall can not be at any more than a 45 degree angle. In your photo it is at a 90 degree angle. Once again I was taught this is a no no. You have no access issues by looking at your crawl space so there is no reason not to do this correctly. Tell them to get back down there and do it right.
  7. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,537
    Location:
    Cave Creek, Arizona
    They must have thought they were putting plumbing in a mobile home, because that is what it looks like. In most jurisdictions, the vent out through the roof has to have an aggregate area, not diameter, equal to the incoming sewer. One 2" vent does not cut it. I hope he gave you a "good price" because he did a "quick and dirty" installation.
    Last edited: Oct 24, 2012
  8. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    Thank you for the replies so far. The plumber who performed the drain and waste vent work is licensed and has a prominent business in my town. His bid was not low. I am having a hard time swallowing all this. The pics I included show only about 25% of the plumbing he did... I am really worried about the other 75% you guys have not seen. I went under the house with a level and did some checking. I found several "uphill" runs. I'm going to meet with my city inspector tomorrow and we are going to walk through the house and I will reply tomorrow with the results.
  9. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,537
    Location:
    Cave Creek, Arizona
    quote; The plumber who performed the drain and waste vent work is licensed and has a prominent business in my town

    Just goes to show you that not all plumbers are created equal. There is one "prominent" one in this town who stated, "I don't need repeat business, I only need to get into every house in town one time".
  10. boardable

    boardable New Member

    Messages:
    51
    Location:
    San Jose, Ca
    UPHILL RUN !!!!! Are you Effin kidding me. Maybe in his world water runs up not down. 1/8 inch slope minimum and 1/4 prefered by me.
  11. wjcandee

    wjcandee Wise One

    Messages:
    1,830
    Location:
    New York, NY
    Very interested to hear what the inspector has to say.
  12. boardable

    boardable New Member

    Messages:
    51
    Location:
    San Jose, Ca
    Also do I see that instead of cutting out the 2x4 and running the double sink drains straight down through the floor where the wall meets they just went in front of the wall? That will only work if your tile guy doesn't mind tiling around them and you don't mind cutting part of the back of your new vanity out and any future installed cabinet also. This is the biggest mickey mouse install I have ever seen
  13. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    There is a double beam directly under the wall so they could not send the drain down without coming outside the wall. The cabinet maker won't have any problem at all, I already talked to him about this.
  14. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    The inspector came out today and he is fairly new at inspections and unsure of the code for venting. He is going to review his code book and get back to me.

    I think I may provide a few add'l photos to show you guys more of the drain and waste vent job. If it comes down to it I may have to use your comments and advice to instruct the plumber on how to do the job right.
  15. wjcandee

    wjcandee Wise One

    Messages:
    1,830
    Location:
    New York, NY
    Last edited by a moderator: Oct 25, 2012
  16. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
  17. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    Another pic

    Another picture for ya...this is part of my 3/4 bath. That is a vanity drain on left and a shower drain on the right (toilet drain not shown in this pic). Above the floor the vanity drain has a dry vent. The shower drain drops about 30" to the trap. I poured a cup of water in the shower pan and I think my neighbor could hear the water dropping into the trap from across the street. This is going to drive me nuts. What should be done here?


    [​IMG]
    Last edited: Oct 25, 2012
  18. wjcandee

    wjcandee Wise One

    Messages:
    1,830
    Location:
    New York, NY
    Those Bert Polk tips that Terry cites are great because they show the individual pieces and how they should be properly applied. (And of course they mention about not venting into the attic...)

    The one that I had, from one Kiickitat County, was nifty to me because it shows some theory -- i.e. it illustrates a bit why certain stuff is done a certain way. It's a little ponderous at first glance, but if you study it a little, it covers a lot of ground in a few pages and is pretty clear... Here's the link for what it's worth, although the one Terry cited is probably better... Klickitat County Homeowner's Plumbing Guide
  19. brianslink

    brianslink New Member

    Messages:
    22
    Location:
    Oklahoma
    Shower trap vent

    Does that shower trap arm on the right need a vent installed?
  20. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,537
    Location:
    Cave Creek, Arizona
    quote; The inspector came out today and he is fairly new at inspections

    "Three munths ago I cuddn't spell inspector, now I are one." How can anyone BE an inspector if they don't know at least as much as the people he is inspecting.
Similar Threads: correct install
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & dual sink disposal possibly incorrectly installed Sep 2, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Island Loop Vent - Correct Installation? Nov 11, 2012
Plumbing Forum, Professional & DIY Advice, Tips & support installed correctly? Oct 6, 2011
Plumbing Forum, Professional & DIY Advice, Tips & Is my water heater installed incorrectly? Oct 3, 2005
Plumbing Forum, Professional & DIY Advice, Tips & Is my bathtub plumbing correct? Venting/Drain setup Aug 19, 2014

Share This Page