Installing washer and dryer in the bathroom

Discussion in 'Plumbing Forum, Professional & DIY Advice' started by maniac78, Nov 24, 2004.

  1. maniac78

    maniac78 New Member

    Messages:
    2
    I'm installing a washer and dryer in my bathroom during a complete remodel of the bathroom. I'm planning on tying into the bath tub drain and installing a trap in the back wall of the bathroom for the washer. It will be about 2-3 feet above the floor and uses 2 inch ABS. The Y is going to be placed after the tub drain trap. Is this the proper way to do this?

    Code:
    Here's a rough diagram 
                                   
                                   Washer drain tube
                                   |
                                   |
                                   |
                                   Trap for washer
                                   |  
                                   |    
                                   | -------------------------|
                                                                        |
    Tub Y for overflow and drain---Tub Trap------Y for washer----
    The tub drain links up to a larger ABS pipe heading into the basement and another heading off to (I'm assuming) the sink.
    Last edited: Nov 24, 2004
  2. jimbo

    jimbo Plumber

    Messages:
    8,997
    Location:
    San Diego
    Have you checked to see if in your jurisdicition a WM must have a pan under it with drain connected? How are you venting the dryer? Is the dryer 220 volt or gas? ( Gas would not be allowed in the bedroom>)
  3. hj

    hj Moderator & Master Plumber Staff Member

    Messages:
    27,230
    Location:
    Cave Creek, Arizona
    drain

    Your drawing is not as clear as you probably intended it, but from what we can see you have no vent for the washer trap and therefore it is not a proper installation.
  4. maniac78

    maniac78 New Member

    Messages:
    2
    But isn't the drain for the tub vented already? Or do you think that adding another fixture to a drain will overload it and therefore I need an additional vent? If so then can I use an auto-vent?

    Both appliances are electric. The dryer is 220 volt. I had an electrician add seperate circuits for each.
  5. Terry

    Terry Administrator Staff Member

    Messages:
    15,405
    Location:
    Bothell, Washington
    The trap for the tub should remain vented.

    You can wye off for the washer, that should have a p-trap and be vented also. So what you have are two seperate traps, each vented. The vents can be combined at 6" above the highest "flood level" of the fixtures.

    Without the venting, one fixture can affect the other.
    When my brother moved into a log cabin that had plumbed the washer in line with the kitchen sink. Everytime the washer ran, it backed goo into the sink.

    Replumbing to code fixed that.
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