Plumb W/D

Discussion in 'Remodel Forum & Blog' started by Eric2007, Mar 6, 2007.

  1. Eric2007

    Eric2007 New Member

    Messages:
    3
    I'm going to be moving my W/D up to 2nd floor and using 1/2" Pex, a couple of Sharkbites couplings & Webstone fittings for the plumbing part which I found at Houseneeds.com. My question is: How do I go about extending the washing machine drain? Does it need to run straigt down to the basement or can it elbow to a long horizantal run before elbowing down to the exhisting PVC drain?

    Thanks for any help!

    :)
  2. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,153
    Location:
    New England
    You need the proper standpipe height, and a trap. Then you can run it down almost any way you want as long as you maintain a minimum of 1/4" per foot. I think that you'd need to re-vent it nearer to the new trap.
  3. Eric2007

    Eric2007 New Member

    Messages:
    3
    By 1/4" per foot you mean the slope?
  4. Eric2007

    Eric2007 New Member

    Messages:
    3
    proper standpipe & trap???
  5. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,153
    Location:
    New England
    The washer drain needs to be 2". There is a vertical pipe (standpipe) above a trap that you hook the washer hose to. This needs to be a specific height (don't remember now, but you can search and find it). You need a trap below that standpipe otherwise, any soap scum in that 10-15' or more of pipe will be open to the bedrooms and smell eventually. The trap isolates all that pipe run from the house.

    Yes, that 1/4" per foot is the slope. Any near horizontal lines need that slope or more.
  6. coz

    coz New Member

    Messages:
    91
    Location:
    MA
    it can be 1 1/2 do a 30 inch standpipe TY, trap and tie the vent in the attic.
  7. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,153
    Location:
    New England
    Today's code, as I understand it, requires 2". Using less risks overflow from today's high efficiency washers and pumps.
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