Basement laundry room plumbing

Discussion in 'Plumbing Forum, Professional & DIY Advice, Tips & ' started by Ottawa97tj, Aug 26, 2013.

  1. Ottawa97tj

    Ottawa97tj New Member

    Messages:
    12
    Location:
    Ontario Canada
    Hey all, great site been lurking for a while.

    Want to make sure this will work before plumbing it. I live in Ontario Canada, Planning on putting a washer and Laundry sink into the basement. The main stack is about 10' away from where I plan on putting the washer and Laundry tub, I plan on running a 2" pipe with a 2" vent going up to the upper floors, the vent pipe will be tied in at about the 8' mark of that run. at the 10' mark I plan on putting a Y 2 x 1 1/2 x 1 1/2 layed on it side so all openings are on the same horizantal plane, my stand pipe and laundry sink will have thier own 1 1/2 inch p traps, the stand pipe will be about a foot away from the y and the laundry sink will be about 1.6 ft. I attached a picture hopefully my description makes sense, will this work?

    Everything is also sloped 1/4 inch per foot.

    Attached Files:

    Last edited: Aug 26, 2013
  2. Tom Sawyer

    Tom Sawyer In the Trades

    Messages:
    3,175
    Location:
    Maine
    Traps must be vented separatly.
  3. Ottawa97tj

    Ottawa97tj New Member

    Messages:
    12
    Location:
    Ontario Canada
    in place of the 2' x 1 1/2 x 1 1/2 Y could i put a double Y and use the middle one as the vent for both traps or do I need to have a vent per trap
  4. jadnashua

    jadnashua Retired Defense Industry Engineer xxx

    Messages:
    22,019
    Location:
    New England
    Neither is vented properly. The vent MUST come off of the trap arm before it turns down. ANd, while you can combine vents, EACH trap needs to be separate...you can combine them later, but there are rules for that.
  5. asktom

    asktom Member

    Messages:
    557
    Location:
    Victor, MT
    You ought to run the washing machine all in 2" rather than 1 1/2".
  6. Ottawa97tj

    Ottawa97tj New Member

    Messages:
    12
    Location:
    Ontario Canada
    Jadnashua, it's hard to tell from a diagram but that Wye is supposed to be horizontal so there is no downturn, just sloped to the stack. I could place a double Y on the horizontal as well if that would work if not I guess I will just vent them separately and join them up above the tub and washer high points.
  7. dj2

    dj2 Member

    Messages:
    411
    Location:
    California
    A washer requires a 2" drain.
  8. Ottawa97tj

    Ottawa97tj New Member

    Messages:
    12
    Location:
    Ontario Canada
    Pretty sure unless I am reading it completely wrong that here in Ontario Canada a washer stand pipe can be 1 1/2", this is from the Ontario Code

    Washer Code.png
    Last edited: Aug 27, 2013
  9. Gary Swart

    Gary Swart In the Trades

    Messages:
    7,350
    Location:
    Yakima WA
    Codes have been changed to require 2" drains for washers because modern washers empty their water much faster than the old ones. Even is your local codes have not been changed yet, you should go with the 2" anyway.
  10. Terry

    Terry Administrator Staff Member

    Messages:
    15,005
    Location:
    Bothell, Washington
    I see that a beer cabinet only requires a 1.5" drain.
    Is that a Canada thing? I have no idea what a beer cabinet is.

    A washer will work with a 1.5" drain. I haven't installed one that way South of the border of Canada in forty years, but I know it will work. It's how they were done here for a long time.
    If I had a 2" nearby though, I wouldn't even consider running it in 1.5". I would pick up some fittings and just change it. :)
    But then that's US thinking.

    I would vent the sink and the washer seperately though. You can then tie those vents back together at 42"
    Last edited: Aug 27, 2013
  11. Ottawa97tj

    Ottawa97tj New Member

    Messages:
    12
    Location:
    Ontario Canada
    Thanks for all the comments, it's appreciated, I hopefully I understood everything, this is what I came up with.

    Three questions

    1. Fitting A on the diagram, can that be fitted at an angle, so the top outlet is at a 45 degree angle? I would then have another 45 to line it up with the other vent pipe that is recessed or do I have to go straight up and use 2 45's?

    2. C on the diagram - how much higher does the vent have to go above the stand pipe before I can join the two vent pipes?

    3. B on the diagram, should this be a Y or a Sanitary T ? Will either pass inspection?

    Laundry room plumbing ver 2.png

    Thanks again for all your help
  12. Sean Beck

    Sean Beck Plumber

    Messages:
    68
    Location:
    Toronto, Ontario, Canada
    1.5" Is acceptable in Ontario for a WM. If your laundry tub and washing machine are close together, then it would be easiest for you if you run just one 1.5" drain from the main stack to the laundry tub, and gang trap the washing machine using a sanitary TY on the vertical pipe upstream of the trap for the laundry tub. The vent is also only required to be 1.5". Just make sure it is within 5 feet of the trap.
Similar Threads: Basement laundry
Forum Title Date
Plumbing Forum, Professional & DIY Advice, Tips & Basement bathroom addition & laundry reconfigure layout Jan 5, 2014
Plumbing Forum, Professional & DIY Advice, Tips & Drain washing machine on first floor to laundry tub in basement? Jul 29, 2013
Plumbing Forum, Professional & DIY Advice, Tips & Basement Laundry remodel - plumbing questions Dec 9, 2012
Plumbing Forum, Professional & DIY Advice, Tips & Relocating Basement Laundry/Utility Sink Apr 21, 2012
Plumbing Forum, Professional & DIY Advice, Tips & Rough basement drain/laundry Mar 18, 2012

Share This Page