Re: drain for washing machine
Posted by Terry Love on May 11, 19100 at 01:50:37:
In response to Re: drain for washing machine
: I'm moving the the washer and dryer to what was the Master bedroom closet. It backs up to a sink in the master bathroom. There is plumbing for hot and cold water that I can tap into. My concern is the drain. There is a 2" pipe coming out of the floor it Tee's off to a P-Trap for the sink then on up and at an angle past the next stud, then out to a roof vent. Do I need to keep this roof vent? There are others downstream. Do I need to add a P-trap for the washing machine. If so, how might I go about installing a P-Trap for the washing machine without busting out the condrete slab?

Leave the vent through the roof. Replace the tee with a fixture cross, with one side to the lav, and the other for the washer. The washer uses a 2" p-trap, the lav can be 1-1/4". Most people use a 1-1/2 p-trap for the lav and use the 1-1/2"x1-1/4" slip-joint washer for the size reduction on the lav tailpiece.



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