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Thread: Stop me before I glue this up

  1. #1
    DIY Junior Member nomadlogo's Avatar
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    Default Stop me before I glue this up

    Quick and simple (yeah right), I have an ejector pit in the basement (converted overhead sewer from underground) that I am plumbing a 3 piece bathroom into. I have dug up some, ok a lot, of concrete and have a mocked up some piped in the trench. Now I need to know why it will not work or if it will before I glue it up and cover it.

    From left to right - 4" to 3" reducer to 3x3x2 Wye on a tilt (30-40 degrees maybe). Street 90 and straight to future shower (p trap). Continues with 3" to a 3x3x2 WYE that is slightly tilted (trying to keep it straight for the up pipe) that goes to a street 90 - 2" that will be Lav and vent up. Continue we have 3" pipe to 3x3x3 with 3" to 2" bushing. WYE 3" goes to toilet with a 3" street 45 then to a standard 3" 90. Bushing on top of WYE goes to a 2" WYE (very slightly tilted) that is venting with a street 90 up. The top of that WYE goes to a p-trap for a floor drain. The vent pipes all tie up to a vent (1.5", I know I should go bigger but that is all that was there for the ejector pit, and yeah probably shouldn't share it with pit either).

    Any thoughts

    See picture
    Name:  Bathroom_Rough2.jpg
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  2. #2
    DIY Junior Member nomadlogo's Avatar
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    Ok... in looking at it some more, there is no real reason I cannot turn the WYE after the toilet up for the vent and then do the same for the Lav. That would just move my proposed wall in a bit. Seems like Wye's that are mostly flat (horizontal) like my picture are frowned upon for venting.

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    Forum Admin, Expert Plumber Terry's Avatar
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    The sbower needs a vent before it enters the main line.
    The lav is vented above the santee is fine. If you had a combo or wye on it's back for the lav, you could continue on for the floor drain. The lav would be wet venting the shower drain. That's one less pipe coming out of the ground.
    Except now I've added one for the shower.

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    DIY Junior Member nomadlogo's Avatar
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    Terry - Thanks for the response.

    Would the Shower (left of picture) not be using the sink (middle) as a wet vent in the setup? I have added a picture with the 2 wye's turned up, first (second wye in line from left) for sink (an up to vent) and second (4th wye in line) for toilet's vent.Name:  Bathroom_Rough3.jpg
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  5. #5
    DIY Member hboogz's Avatar
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    Name:  Screenshot_2013-11-15_09-45-30.jpg
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Size:  73.6 KBGreat Thread. I'm a beginner and was wondering if you could identify some of the items I've marked up based on your picture.

    Green Circle: Is that santee going to a main drain and then a sewage ejector? I believe that's a 3x4X2 ?
    Blue Circle: Is that what the pro's call putting a santee on "its back" ?
    Red Circle: Is that the vent stack ?

    is the difference between calling the fitting a wye or santee is its application/usage. To the untrained eye, they are all similar save for the opening sizes.

    Thanks!

  6. #6
    DIY Junior Member nomadlogo's Avatar
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    Terry - i think I found the answer to my question. The shower is wet vented (in some actuality) but since the toilet it upstream it would cause an issue. Is this correct? So when the toilet is flushed it would be better to have it pull air from the shower vent versus potentially pulling the water out of the trap?? I broke up a little more concrete and added a vent for the shower. How are we looking now.Name:  Bathroom_Rough4.jpg
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    Last edited by nomadlogo; 11-15-2013 at 08:43 AM.

  7. #7
    DIY Junior Member nomadlogo's Avatar
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    Hboogz... I described all the fittings in the first post, but just to recap

    Green Circle = That is a 3x3x2 Wye with the 2" segment running to a shower off of a street 90 (2"). The 3 inch segment to the left is connected to a reducer 4" to 3" that is connected to the ejector pit.

    Blue Circle = A 3"x3"x3" WYE that has a Street 3" 45 connecting to a 3" 90 for the toilet. This WYE if it was all-in one would be called a Combo. There is no sanitary T in this layout (at least as far as by the names I am familiar with). The back part of that particular WYE has a 3" to 2" bushing to allow the smaller WYE (2"x2x2) to be connected. Which is your Red Circle.

    Red Circle - Is a Vent for the toilet. With a emergency drain floor drain P-trap right after it.

    Hope that helps some.

    Thanks

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    DIY Member hboogz's Avatar
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    Thanks for the clarification nomad.

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    Test, Don't Guess! cacher_chick's Avatar
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    The wyes for the vents must be turned upward so the dry vent is never running at an angle lower than 45 degrees.

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    Forum Admin, Expert Plumber Terry's Avatar
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    Any horizontal change of direction should be a wye or long turn 90.

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    DIY Junior Member nomadlogo's Avatar
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    @cacher_chick - you say wye(s) indicating more than one but I take it in my last posted picture you are referring to the single newly added shower vent to on the left (or you were just responding to my early post). For the latter, the I should be able to turn that to 45 degrees and still hit the wall that is going to go around the ejector pit so that should be good. Does everything else in the latest picture pass the smell test then? Thank you for your comments.

    @Terry - Do I have a horizontal change of direction not using a WYE. My first connection is a WYE+90 to the shower P Trap with an immediate WYE for the newly added Vent. If you are referencing cacher's point about the WYE rotated up for that new shower vent, that makes sense. If not, I am not quite sure which part you are referencing. I do appreciate all the help.

  12. #12
    In the Trades Tom Sawyer's Avatar
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    Quote Originally Posted by nomadlogo View Post
    @cacher_chick - you say wye(s) indicating more than one but I take it in my last posted picture you are referring to the single newly added shower vent to on the left (or you were just responding to my early post). For the latter, the I should be able to turn that to 45 degrees and still hit the wall that is going to go around the ejector pit so that should be good. Does everything else in the latest picture pass the smell test then? Thank you for your comments.

    @Terry - Do I have a horizontal change of direction not using a WYE. My first connection is a WYE+90 to the shower P Trap with an immediate WYE for the newly added Vent. If you are referencing cacher's point about the WYE rotated up for that new shower vent, that makes sense. If not, I am not quite sure which part you are referencing. I do appreciate all the help.
    The wye and elbow serving as the shower vent. The wye can't be flat like you have it with that short piece in the elbow. No part of the vent can be horizontal until it has risen 6" above the flood level of the highest fixture in the group (the lav)
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

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    DIY Senior Member Reach4's Avatar
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    I think Terry is referring to part C. Name:  huge5.jpg
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    Is that ground water at U?
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    Last edited by Reach4; 11-15-2013 at 11:49 AM.

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    DIY Junior Member nomadlogo's Avatar
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    @Tom Sawyer - yeah, cacher_chick mention that and I have since turned the WYE up and used a street 45 to get it to be "somewhat vertical" for the vent pipe.

    @Reach4 - I gotcha, so that normal 90 would likely be a choke point... A long sweep 90 it is, which means some more concrete breaking. As for U in your photo, that is not ground water but the location where the floor drain is (was) and I have the Furnace just dripping down the concrete into the hole right now. Will vac it out before backfilling.

    UPDATE: I broke up some more concrete and swapped out for the long sweep 90. To get the vent to get level I had to add 22, is this allowable. You will notice in the second picture the vent is above 45 (so vertical).
    Name:  Bathroom_Rough5.jpg
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Size:  69.5 KBName:  Bathroom_Rough5Close.jpg
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    Last edited by nomadlogo; 11-15-2013 at 03:38 PM.

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    In the Trades Tom Sawyer's Avatar
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    Yes.......
    [B]No, plumbing ain't rocket science. Unlike rocket science, plumbing requires a license[B]

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