(206) 949-5683, Top Rated Plumber, Seattle
Results 1 to 4 of 4

Thread: Upstairs washing machine drain

  1. #1
    DIY Senior Member chris8796's Avatar
    Join Date
    Jan 2005
    Location
    Illinois
    Posts
    100

    Default Upstairs washing machine drain

    I'm considering converting an upstairs spare bedroom to a laundry. My main concern is how to run the drain. I am fortunate enough to have the space and access to run a 2" drain from the 2nd floor location to the basement in a straight vertical drop. Once I hit the basement, there's a 2" drain from the first floor kitchen sink/dishwasher, which would be convenient to tie into. It is another 10ft to the mainstack. Can I do this or would I need to increase the size of the pipe from the connection to the main stack? Going straight to the main stack presents some routing problems.

    Next is venting, the wall that would receive the drain already has 2 vent pipes (1.5" and 2") in it which services the upstair bathroom. Can I tie into these to vent the drain? At what location should the vent be plumbed into the drain?

    Are there any other considerations that I might not be aware of?

    Thanks for any advice you may offer.

    Chris

  2. #2
    Forum Admin, Expert Plumber Terry's Avatar
    Join Date
    Aug 2004
    Location
    Bothell, Washington
    Posts
    14,191
    Blog Entries
    1

    Default

    The 2" drain can go to the basement and tie into the sink/dishwasher 2" line.

    The vent for the washer p-trap can tie into one of the vents at 6" above the flood level of the washer stand pipe. You can use 1.5" for the vent.

    Some locals require a drain pan for the washer on upper floors, that will need to be drained too.

  3. #3
    DIY Senior Member chris8796's Avatar
    Join Date
    Jan 2005
    Location
    Illinois
    Posts
    100

    Default

    Thanks for the info.

    Do you have an opinion on those automatic shut off valves (the ones that sense the current drawn by the washer and turn off and on)? I like the idea of it but at $150+ I need some additional motivation.

    Can the drain pan share the same drain line as the washer?
    Last edited by chris8796; 01-08-2005 at 01:16 PM. Reason: added drain pan question

  4. #4
    Plumber Deb's Avatar
    Join Date
    Sep 2004
    Location
    Idaho
    Posts
    200

    Default Deb

    Make sure that you understand the rules on the trap arm length, trap, fittings to use, and stand pipe length.
    Deb
    The Pipewench

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
  •