Traps must be vented separatly.
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.
Last edited by Ottawa97tj; 08-26-2013 at 12:52 PM.
Traps must be vented separatly.
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
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.
Important note - I'm not a pro
Retired Defense Industry Engineer; Schluter 2.5-day Workshop Completed 2013
You ought to run the washing machine all in 2" rather than 1 1/2".
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.
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
Last edited by Ottawa97tj; 08-27-2013 at 09:39 AM.
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.
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"
Thanks for all the comments, it's appreciated, I hopefully I understood everything, this is what I came up with.
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?
Thanks again for all your help
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.