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  1. #1

    Default Tapping into waste stack.

    Hi,

    First post in a long time but ran into this tap today. I can't find anything saying you can't tap into the waste line in this fashion but as you can see it does not make a good seal. And shouldn't a sweep be install like the one above. I'll keep reading the code book but I'm sure one of you have found this type of install.

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  2. #2
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,250

    Default Re: Tapping into waste stack.

    Several things wrong with that.

    First, not taps are allowed, fittings only, and the fittings shall be directional fittings, and the fittings shall not be modified/altered/drilled (such as for saddle taps, which is basically what that is), etc.

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

  3. #3
    Join Date
    Mar 2007
    Location
    Ormond Beach, Florida
    Posts
    26,250

    Default Re: Tapping into waste stack.

    For starters:
    - From the IRC:
    - - P3003.1 Tightness.
    - - - Joints and connections in the DWV system shall be gas tight and water tight for the intended use or pressure required by test.
    - - - P3003.1.1 Threaded joints, general.
    - - - - Pipe and fitting threads shall be tapered.
    - - P3003.2 Prohibited joints.
    - - - Running threads and bands shall not be used in the drainage system. Drainage and vent piping shall not be drilled, tapped, burned or welded.
    - - - The following types of joints and connections shall be prohibited:
    - - - - 1. Cement or concrete.
    - - - - 2. Mastic or hot-pour bituminous joints.
    - - - - 3. Joints made with fittings not approved for the specific installation.
    - - - - 4. Joints between different diameter pipes made with elastomeric rolling O-rings.
    - - - - 5. Solvent-cement joints between different types of plastic pipe.
    - - - - 6. Saddle-type fittings.
    .
    - - P3003.14 PVC plastic.
    - - - Joints between PVC plastic pipe or fittings shall comply with Sections P3003.14.1 through P3003.14.3.
    - - - P3003.14.1 Mechanical joints.
    - - - - Mechanical joints on drainage pipe shall be made with an elastomeric seal conforming to ASTM C 1173, ASTM D 3212 or CSA B602. Mechanical joints shall not be installed in above-ground systems, unless otherwise approved. Joints shall be installed in accordance with the manufacturer’s instructions.
    - - - P3003.14.2 Solvent cementing.
    - - - - Joint surfaces shall be clean and free from moisture. A purple primer that conforms to ASTM F 656 shall be applied. Solvent cement not purple in color and conforming to ASTM D 2564, CSA B137.3 or CSA B181.2 shall be applied to all joint surfaces. The joint shall be made while the cement is wet, and shall be in accordance with ASTM D 2855. Solvent-cement joints shall be permitted above or below ground.
    - - - P3003.14.3 Threaded joints.
    - - - - Threads shall conform to ASME B1.20.1. Schedule 80 or heavier pipe shall be permitted to be threaded with dies specifically designed for plastic pipe. Approved thread lubricant or tape shall be applied on the male threads only.

    - - P3005.1 Drainage fittings and connections.
    - - - Changes in direction in drainage piping shall be made by the appropriate use of sanitary tees, wyes, sweeps, bends or by a combination of these drainage fittings in accordance with Table P3005.1. Change in direction by combination fittings, heel or side inlets or increasers shall be installed in accordance with Table P3005.1 and Sections P3005.1.1 through P3005.1.4. based on the pattern of flow created by the fitting.

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

  4. #4

    Default Re: Tapping into waste stack.

    Quote Originally Posted by Craig Lester View Post
    Hi,

    First post in a long time but ran into this tap today. I can't find anything saying you can't tap into the waste line in this fashion but as you can see it does not make a good seal. And shouldn't a sweep be install like the one above. I'll keep reading the code book but I'm sure one of you have found this type of install.
    Thank you Jerry!!!


  5. #5
    Join Date
    May 2009
    Location
    Pennsylvania
    Posts
    27

    Default Re: Tapping into waste stack.

    So what would be a good way to report this since we are not code inspectors. I have seen his several times and said something but I usually get flack about not being a code official.


  6. #6
    Join Date
    Oct 2010
    Location
    MONTREAL QUEBEC-CANADA
    Posts
    1,842

    Default Re: Tapping into waste stack.

    Quote Originally Posted by Craig Lester View Post
    Hi,

    First post in a long time but ran into this tap today. I can't find anything saying you can't tap into the waste line in this fashion but as you can see it does not make a good seal. And shouldn't a sweep be install like the one above. I'll keep reading the code book but I'm sure one of you have found this type of install.
    Amateurish plumbing.
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  7. #7
    Join Date
    Feb 2013
    Location
    NY
    Posts
    48

    Default Re: Tapping into waste stack.

    Quote Originally Posted by Chuck Miller View Post
    So what would be a good way to report this since we are not code inspectors. I have seen his several times and said something but I usually get flack about not being a code official.
    Workmanship not done in a professional manner accompanied by evidence of leakage.

    - - - Updated - - -

    Quote Originally Posted by Chuck Miller View Post
    So what would be a good way to report this since we are not code inspectors. I have seen his several times and said something but I usually get flack about not being a code official.
    Workmanship not done in a professional manner accompanied by evidence of leakage.


  8. #8
    Join Date
    Feb 2013
    Location
    NY
    Posts
    48

    Default Re: Tapping into waste stack.

    Quote Originally Posted by Chuck Miller View Post
    So what would be a good way to report this since we are not code inspectors. I have seen his several times and said something but I usually get flack about not being a code official.
    Workmanship not done in a professional manner accompanied by evidence of leakage.


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