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  1. #1
    Join Date
    Mar 2007
    Location
    Western Montana
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    261

    Default 90 degree Drainpipe fittings

    See attached photo.
    Two 90 degree elbows (I suspect coming from a bathtub) don't look like approved fittings. What is IRC code for this? (I see a table under 2006 IRC P3005.1).
    I also assume the Wye fitting is upside down. correct?

    What would these 90 elbows normally be used for? Water supply fittings?

    How would you call this out in a report?

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  2. #2

    Default Re: 90 degree Drainpipe fittings

    Just say that nothing about that installation is correct. Tell them to have a real plumber fix that mess.


  3. #3
    Joshua Hardesty's Avatar
    Joshua Hardesty Guest

    Default Re: 90 degree Drainpipe fittings

    Yeah. That's a whole lotta mess. Those fittings are typically used for cold water supply outside of a house (not inside) such as for a well pump. They're not DWV at all. Plus, the 3x2 tee is upside down.


  4. #4
    Join Date
    Feb 2008
    Location
    Chicago IL
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    1,984

    Default Re: 90 degree Drainpipe fittings

    Terry,
    Those are vent 90's, not drainage 90's.
    It's a sanitary tee which is upside down, not a wye.
    Hope the buyers don't have long hair. Forget about trying to get a rod through multiple vent 90's

    www.aic-chicago.com
    773/844-4AIC
    "The Code is not a ceiling to reach but a floor to work up from"

  5. #5
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,248

    Default Re: 90 degree Drainpipe fittings

    State improper fittings used in DWV piping and sanitary tee is upside. Improper worm-gear hose clamps used on supply piping visible through cut-out opening. Have plumbing contractor correct as needed and verify inaccessible plumbing above is correct.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  6. #6
    Jon Bolton's Avatar
    Jon Bolton Guest

    Default Re: 90 degree Drainpipe fittings

    Stupid question...how do you tell the difference between drain and vent 90's? I've got my suspitions but don't want to insert both feet.


  7. #7
    Joshua Hardesty's Avatar
    Joshua Hardesty Guest

    Default Re: 90 degree Drainpipe fittings

    Quote Originally Posted by Jon Bolton View Post
    Stupid question...how do you tell the difference between drain and vent 90's? I've got my suspitions but don't want to insert both feet.
    Those are pressure 90's, not vent 90's. Anyways, it really all comes down to the sweep of the pipe. These are line drawings from Charlotte Pipe's website:


    Vent 90:
    Charlotte Pipe and Foundry Company - Product Information

    90:
    Charlotte Pipe and Foundry Company - Product Information

    Long sweep 90:
    Charlotte Pipe and Foundry Company - Product Information

    Pressure 90:
    Charlotte Pipe and Foundry Company - Product Information


    Notice that with pressure fittings, the outside diameter of the fitting stays the same; that is to say, there's no visible hub that the pipe slides into like there are the vent, regular and long sweep DWV fittings.


  8. #8
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
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    26,248

    Default Re: 90 degree Drainpipe fittings

    Quote Originally Posted by Jon Bolton View Post
    Stupid question...how do you tell the difference between drain and vent 90's?

    There is no difference between drain and vent 90s. That is why they are DWV ... DrainWasteVent ... and not "90s", but "sweeps"

    Those shown are "pressure fittings", not DWV fittings.

    Two visual differences between DWV and pressure fittings is that pressure fittings have a sharp radius versus a sweeping bend for DWV, and, pressure fittings did not have a smooth transfer from interior surface to interior surface, whereas DWV fittings do - so they will not catch waste, clog and become blocked up.

    Jerry Peck, Construction / Litigation Consultant
    Construction Litigation Consultants, LLC ( www.ConstructionLitigationConsultants.com )
    www.AskCodeMan.com

  9. #9
    Join Date
    Mar 2007
    Location
    Kalamazoo, MI
    Posts
    117

    Default Re: 90 degree Drainpipe fittings

    Terry, if that is a tub drain it should be 2in. The pipe looks more like 1.5 in. in the photo. Regardless, I have to agree with everyone else that is am amaturish job which more than likely will either eventually plug or leak!

    RJDalga
    http://homeanalysts.com
    Kalamazoo, MI

  10. #10
    Jon Bolton's Avatar
    Jon Bolton Guest

    Default Re: 90 degree Drainpipe fittings

    THanks Jerry!


  11. #11
    Join Date
    Mar 2007
    Location
    New Mexico
    Posts
    1,258

    Default Re: 90 degree Drainpipe fittings

    Robert, are you sure about the 2 inch for tub drains? I thought that was for showers, and tubs could be 1.5 or 2 inch.

    Jim Robinson
    New Mexico, USA

  12. #12
    Join Date
    Mar 2007
    Location
    Kalamazoo, MI
    Posts
    117

    Default Re: 90 degree Drainpipe fittings

    Opps, I think your right...tubs 1.5 and showers 2. My Bad.

    RJDalga
    http://homeanalysts.com
    Kalamazoo, MI

  13. #13
    mike huntzinger's Avatar
    mike huntzinger Guest

    Default Re: 90 degree Drainpipe fittings

    All this and I still dont see a "P" trap for sewer gas


  14. #14
    Jon Bolton's Avatar
    Jon Bolton Guest

    Default Re: 90 degree Drainpipe fittings

    Thanks Joshua, clear as a bell now!


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