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Thread: Is my Laundry room drain relocation to Code in Alberta?

  1. #1
    DIY Junior Member supracar865's Avatar
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    Default Is my Laundry room drain relocation to Code in Alberta?

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Size:  33.2 KBAttachment 18044Attachment 18043I am planning to move my existing washing machine stack to a different wall, and adding a drain for a utility sink. on my existing layout is the T with a seperate threaded cap my clean out?

    I plan to cut both T's out of my vent pipe, and add 2 new ones. The one for the washing machine will need a 45* bend in it to run down the other wall 6 feet. and a second one for a utility sink.

    Any addition info you can give me on pitch of my drains,required heights, lengths or clean outs would be great!

    Existing picture on the left , new layout on the right.

    Thanks in advance!!!
    Last edited by supracar865; 11-29-2012 at 01:14 PM.

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    Forum Admin, Expert Plumber Terry's Avatar
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    You can't wet vent a washer over "anything".

    It siphons the trap of the fixture below.

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    DIY Junior Member supracar865's Avatar
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    So swapping the location of each with the sink on the top would be fine?

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    Forum Admin, Expert Plumber Terry's Avatar
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    Swapping would be better, and then adding a vent for the washer trap arm, and then reventing the two vents at 42" makes it legal anywhere.

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    DIY Junior Member supracar865's Avatar
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    Your help is greatly appreciated Terry. If I follow you correctly, you are saying to add a "T" before the Washer trap, and run a vent up, and back over to my existing vent and tapping into it with another T connection? I am unclear as to where this 42" measurement applies to.

    Thanks again!

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    Forum Admin, Expert Plumber Terry's Avatar
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    Something like this



    Unless hj is doing it in Arizona. I'm waiting for him to say something.

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    DIY Junior Member supracar865's Avatar
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    Judging from that picture, i am assuming the 42" is the minimum above the washer trap arm that the vent must connect? And that a trap will be connected after drywall for the sink?

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    Forum Admin, Expert Plumber Terry's Avatar
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    In plumbing, 42" is a good number to tie the vents together. It puts you 6" above a 36" kitchen cabinet and sink.
    They want six inches above the "flood level" of the fixtures for connecting the vents.

    The picture above was a rough-in before drywall. The p-trap gets installed at "Trim".
    Last edited by Terry; 11-29-2012 at 02:42 PM.

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    DIY Junior Member supracar865's Avatar
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    Im confused so that is the height where the vent needs to attach or is that a measurement for the washer stack height?

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    Forum Admin, Expert Plumber Terry's Avatar
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    Vents must be vertical until six inches above the flood level of the fixtures served. Otherwise, in a sewer backup, the vents can flood.


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    DIY Junior Member supracar865's Avatar
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    This picture and your explaination make a lot of sense. I plan to copy your first picture post. I do have one last question though, since my trap arm will be about 5 feet should i place the vent T right after my washer trap then up the wall 42" and then back down the wall to my existing vent?

  12. #12
    Forum Admin, Expert Plumber Terry's Avatar
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    A 2" trap arm can go 60" (five feet) before the vent. So anywhere in that distance would be fine for the vent.

    I would keep the two vents close and then 90 around the corner for the washer, if that still keeps in within the five foot range.

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    DIY Junior Member supracar865's Avatar
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    well ive got it pieced together without glue an strapping for now

    - 1/4" drop per foot on washer arm
    -trap 5' from its vent
    -vent connection well above 42" from floor
    -washer "T" connection below future sink "T"
    -clean out on bottom
    -I will strap every stud

    What do you think
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    Forum Admin, Expert Plumber Terry's Avatar
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    The santee on the far right on the re-vent should be flipped the other way.
    The picture is a bit fuzzy, I'm not sure the other tees are the right way either.
    Some codes allow a horizontal santee on the traparm, some like UPC want a combo or wye fitting.

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    DIY Senior Member dlarrivee's Avatar
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    Quote Originally Posted by supracar865 View Post
    well ive got it pieced together without glue an strapping for now

    - 1/4" drop per foot on washer arm
    -trap 5' from its vent
    -vent connection well above 42" from floor
    -washer "T" connection below future sink "T"
    -clean out on bottom
    -I will strap every stud

    What do you think
    ABS piping CANNOT be dry fit together, it doesn't fit the same with vs. without solvent cement.

    The sanitary tee where your vent ties in above should be flipped.

    The rest is a little too hard to make out.

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