Washing machine drain layout

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by 1832 farmhouse, Jul 7, 2013.

  1. 1832 farmhouse

    1832 farmhouse New Member

    Messages:
    5
    Location:
    Horsham , PA
    Hello,

    This is my first post and I hope the pictures come through ok. I am DIYer with a wide knowledge of construction.
    I am moving laundry to 2nd floor while remodeling and want a extra eyes on my layout.
    I current setup is dryfitted together.

    thanks
    2013-07-07_14-46-22_170.jpg
  2. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,383
    Location:
    Yakima WA
    I can't see for sure, but does the vent go to the outside or is than an AAV? AAV venting may not be OK where you are.
  3. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    Even if the AAV is permitted it must be in a location where it can be serviced.

    John
  4. Tom Sawyer

    Tom Sawyer In the Trades

    Messages:
    3,261
    Location:
    Maine
    AAV's don't work on washing machine drains. Washer drains are a pressure assisted drain. AAV's only let air in, not out.
  5. 1832 farmhouse

    1832 farmhouse New Member

    Messages:
    5
    Location:
    Horsham , PA
    It is a AAV. I will have a access panel in front of it. I have never heard that AAV's could not be used on washing machines.
    I thought a AAV open and closes?
    would it not work with the pressure that washer machine discharges?

    Thanks

    I have had AAVs installed on previous piping in another home area in my on a drain line.
  6. 1832 farmhouse

    1832 farmhouse New Member

    Messages:
    5
    Location:
    Horsham , PA
    would anyone install a cleanout somewhere in my layout?
  7. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    AAV's only open with a negative pressure.

    John
  8. 1832 farmhouse

    1832 farmhouse New Member

    Messages:
    5
    Location:
    Horsham , PA
    wouldn't there be negative pressure behind the water as it passes down the tee?
  9. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    On a pumped drain such as a clothes there can be a positive pressure caused by the water displacing he air in the line. That will not allow the AAV open.

    John
  10. 1832 farmhouse

    1832 farmhouse New Member

    Messages:
    5
    Location:
    Horsham , PA
    I see. very bummed out right now. Things now means another roof penetration? do they make a vent for my situation that would exit through the wall ?
  11. johnjh2o1

    johnjh2o1 Plumbing Contractor for 49 years

    Messages:
    1,143
    Location:
    South*East
    You could connect it to another vent in the attic.

    John
  12. Smooky

    Smooky Member

    Messages:
    624
    Location:
    NC
  13. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,383
    Location:
    Yakima WA
    Nothing says you can't go through the wall and then up with a vent.
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