(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 9 of 9

Thread: Adding Washer/Water Heater Drain

  1. #1
    DIY Junior Member AEmedic's Avatar
    Join Date
    Nov 2008
    Location
    Malmstrom AFB, Great Falls, MT
    Posts
    4

    Default Adding Washer/Water Heater Drain

    I am in the process of buying my mother a house in Idaho. The bathroom has a washer with no drain and a water heater closet with no drain.
    I attempted to hand draw the layout of the room.
    The house is on a slab built at least 30-40 years ago which makes everything harder.
    Previously the washer was drained into the tub/toilet and the W/H had no drain for the pressure relief valve.
    I need to find a way to add drains for both the washer and the W/H. Can I connect them to the 2in vent that is on the exterior wall?
    What would the proper layout be?
    The Vent pipe is on the exterior of the wall...

    Chris

  2. #2
    DIY Junior Member AEmedic's Avatar
    Join Date
    Nov 2008
    Location
    Malmstrom AFB, Great Falls, MT
    Posts
    4

    Default

    I forgot to mention, the 2in vent is only connected to the toilet line.
    Chris

  3. #3
    Master Plumber Redwood's Avatar
    Join Date
    Dec 2007
    Location
    Connecticut
    Posts
    7,463

    Default

    You cannot connect them to the vent. You will need to cut the slab to join the line in the floor. The vent for the laundry may tie into the existing vent.

  4. #4
    In the Trades Gary Swart's Avatar
    Join Date
    Sep 2004
    Location
    Yakima WA
    Posts
    7,245

    Default

    In addition, the washer must be a 2" drain and the standpipe must be trapped.

  5. #5

    Default

    Air = vent pipe
    Water = waste pipe

    Question: Can water go down the air pipe?

    I'm still thinking.................

    I don't think so.
    If you can find a water pipe, that would work.

  6. #6
    DIY Junior Member AEmedic's Avatar
    Join Date
    Nov 2008
    Location
    Malmstrom AFB, Great Falls, MT
    Posts
    4

    Default

    I am not a plumber!

    I don't claim to be a plumber.

    I am trying to get my head around this problem so that when we contract this out I know what I should expect.

    "Air & Water” I know the difference in theory but not application, remember I am not a plumber...

    When I look at diagrams I notice many that show the "Main Stack" with many ancillary connections and it ultimately vents out of the roof, so pardon my ignorance and please just help me!

    Playful comments are fine and I understand jerking around with the new guy but please don't just be rude...
    Chris

  7. #7

    Default

    Here is a washer rough-in.
    Does the water heater need a drain for the relief only, or does it need a floor drain?
    Attached Images Attached Images  

  8. #8
    DIY Junior Member AEmedic's Avatar
    Join Date
    Nov 2008
    Location
    Malmstrom AFB, Great Falls, MT
    Posts
    4

    Default

    Quote Originally Posted by Obama the Plumber View Post
    Here is a washer rough-in.
    Does the water heater need a drain for the relief only, or does it need a floor drain?
    The pressure relief valve needs a drain only.

    In that picture, it looks like the same pipe is used to vent and drain, so there-in lies my confusion.

    That is a great picture bt the way!
    Chris

  9. #9

    Default

    If you look at the washer p-trap and follow it to the left, you will see a wye fitting for the vent,
    Go a bit farther left, and you see a laundry tray (sink) drain above the tee, that is vented out the top of the tee.

    The "washer" air vent, since it is horizontal, needs a wye.

    The "sink" fitting to air vent, can be a tee (santee) since it is vertical.

    Both air vents, "washer vent" and "sink vent" tie together above the "flood" level of both plumbing fixtures.

    Flood level means, the washer and the sink would overflow onto the floor before it got as high as the top tee.
    This way, backed up waste can not rise so high as to go up and over to the other plumbing fixture. The water floods onto the floor first.

    Look lower, the washer connects "below" the sink drain.
    The pipe going down is "water" waste.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •