Plumbing a washer in correctly.......

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by carloliveira, Apr 18, 2013.

  1. carloliveira

    carloliveira New Member

    Messages:
    15
    Location:
    Denville, NJ
    Just want to begin by thanking everyone for their input before I ask kindly for your help...

    Currently my washer is plumbed into the sanitary through a one way valve then into a wye with no trap and unfortunately this is the way it was when I bought the home.

    The picture I'm posting along with this is the method I would like to switch it to unless it will not work using an approved AAV of course.

    I would prefer not to tear up my new kitchen to run a vent pipe......thanks again......

    Attached Files:

  2. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,244
    Location:
    Land of Cheese
    No plumbing code allows a standpipe to be installed higher than the washer.

    Do do this correctly will require a laundry pump system to pump the water from a basin into the building drain. An AAV will not work with a pumped system because it must allow air flow in both directions.

    It appears that the home is only one story, which in most cases would mean that a vent line can be brought up through an interior wall without needing to "tear up" anything. The vent between floors does not need to be at the laundry if it makes it easier to route.
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    26,508
    Location:
    Cave Creek, Arizona
    quote; No plumbing code allows a standpipe to be installed higher than the washer.

    WHy not? The washer has a "pumped" drain so it can raise the water a specified distance to enter a 'high' trap. Two possible problems;
    1. an AAV will not cure a positive pressure caused by the upstairs sink draining, and,
    2. in the event of a stoppage, the sink waste will overflow the standpipe. But,
    3. The washer drain must not be connected directly to the drain system, since that could create a worse situation if either #1 OR #2 occurred.
  4. carloliveira

    carloliveira New Member

    Messages:
    15
    Location:
    Denville, NJ

    that wall which the pipe is along side of is an exterior wall which is insulated it would be very tough to hog a hole and shove a pipe through it with insulation in the way......i should have known better that would've been to easy, i just find it awkward that the washer discharges through a pump and for me to discharge into another pump is just another device to have to worry about.....just me venting not your fault.....

    found this which another moderator had posted in other topics.....so every thing you responded with makes total sense

    804.1 All plumbing fixtures or other receptors
    receiving the discharge of indirect waste pipes shall be
    approved for the use proposed and shall be of such
    shape and capacity as to prevent splashing or flooding
    and shall be located where they are readily accessible
    for inspection and cleaning. No standpipe receptor for
    any clothes washer shall extend more than thirty (30)
    inches (762 mm), nor less than eighteen (18) inches
    (457 mm) above its trap. No trap for any clothes
    washer standpipe receptor shall be installed below the
    floor, but shall be roughed in not less than six (6)
    inches (152 mm) and not more than eighteen (18)
    inches (457 mm) above the floor.
  5. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,244
    Location:
    Land of Cheese
    While I am no expert, I have trouble believing that any clothes washer manufacturer would approve of such an installation. My plumbing code does not. Maybe it is ok where HJ is.

    As I mentioned before, the vent can be installed between floors many feet away from the washer.


    The waste from an automatic clothes
    washer shall discharge through an air break into a standpipe in
    accordance with Section 802.4 or into a laundry sink. The trap
    and fixture drain for an automatic clothes washer standpipe
    shall be a minimum of 2 inches (51 mm) in diameter. The auto-
    matic clothes washer fixture drain shall connect to a branch
    drain or drainage stack a minimum of 3 inches (76 mm) in
    diameter.

    (c) Clothes washers. 1. ‘Residential types.’ Residential−type
    clothes washers shall discharge into the sanitary drain system by
    means of an air−break.
    a. A standpipe receptor may not extend more than 36 inches
    nor less than 18 inches above the centerline of the trap outlet.
    b. A standpipe receptor shall terminate at least 26 inches but
    not more than 48 inches above the floor on which the clothes
    washer is located.
    Last edited: Apr 18, 2013
  6. Hammerlane

    Hammerlane New Member

    Messages:
    252
    Location:
    Ohio
    Hey hj. I notice all your posts where you quote people, your quotes never show up as quotes. You must be deleting this sequence of keystrokes to close the quote:

    [/QUOTE]


    If you care??

    Attached Files:

  7. cacher_chick

    cacher_chick Test, Don't Guess!

    Messages:
    3,244
    Location:
    Land of Cheese
    HJ is old school. He is still using a typewriter.

    ;);););););)
  8. carloliveira

    carloliveira New Member

    Messages:
    15
    Location:
    Denville, NJ
    Hj, the sink has is own vent in the diagram the AAV is for the washer trap only.....the AAV would see the kitchen sink positive pressure in that instance.....

    Isn't your 2nd statement true even if the sanitary pipe was at ground level how bout a one way on the standpipe to prevent backups?

    Im not testing your patience just an Inquiring mind.....
    Last edited: Apr 18, 2013
  9. carloliveira

    carloliveira New Member

    Messages:
    15
    Location:
    Denville, NJ
    Actually now I think about it the one way would be a flood waiting to happen on a stand pipe.......Sugar Honey Ice Tea
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