08:37AM | 01/14/05
Member Since: 10/19/04
25 lifetime posts
(this is one the of the most helpful and quick forums.. thanks for prior help!)..

I am doing a small reno in a clothes washing room, making it a pseudo kitchen. The washer is one full base cabinet away from the sink base. The vertical drain pipe that handles the sink outflow is directly behind the to-be-installed sink. Not being a plumber, but being determined, i see no troubles with the sink, but wondered about the fittings to hide the outflow from the washer (it used to be just a pipe draining into the utility sink. Now we cabinets and such we want to hide it. I am putting in a recessed box to move the taps feeding the washer out of the way, and wanted to use the 2" holes in that box to outflow back to the original down pipe, but there are 3 studs in the way, and i assume i cannot cut a 2" hole in them as that is way too large. is my only alternative to cut holes and run the pipe along the back of the new cabinet that sits between the sink base and the washer? many thanks, drew..


05:31PM | 01/16/05
Member Since: 10/19/04
25 lifetime posts
after more research, and chatting to hardware store folks, it would seem that i can put a 1.5" pipe from the recessed box directly through the studs, then tie into the stack behind the sink, except that i would need a 3-4 vent pipe capped with a little breather top, all within the wall. I think instead i should pop the 1.5" pipe out of the wall and hook it to the sink outflow, on the stack side of the sink trap. I have about 5" from the wall stack to the trap. Does all this sound correct? (heck i think i am actually learning a few plumbing words here... √ú), drew..


02:10AM | 01/17/05
Hi Drew. You need a 2" drain line for your washing machine. While there are some states that allow 1 1/2" sink and shower drains I'm not aware of any that allow less than a 2" wm drain. Drill through the studs instead of notching. That's how we get the lines in. You can run 5' to the sink drain/vent line.

Is this an exterior or load bearing wall?

No autovent or 3 or 4" vent pipes.


08:37AM | 01/17/05
Member Since: 10/19/04
25 lifetime posts
hey again Lonny, nice to hear from you! 2x4's hit about 3.5" wide and if i take out 2", isn't that rather risky? the wall appears to be load-bearing, at least it has a double header. I have not seen these, but it would be nice to have a metal brace, almost like a square washer that is 3.5" wide that you could use to reinforce the stud.

And that vent stack i meant to type: 3'-4', sorry for the typo. A few forums i participate in allow attachments, then i could just post a jpg of the wall, now wouldn't that be cool? √ú drew..
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