size of drain pipe

09-19-2010, 04:51 PM	#1
eice Newbie   Join Date: Sep 2010 Posts: 2	size of drain pipe What size pipe do you need to drain 2 washers?

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09-19-2010, 05:00 PM	#2
oh'mike Super Moderator   Join Date: Sep 2009 Location: Kane county,Illinois Posts: 16,254	size of drain pipe A little more of an explanation--are you installing two washing machines? If so each one will need its own 2" drain and 1 1/2 inch vent.--2 machines=2 drains.

09-19-2010, 07:25 PM	#3
eice Newbie   Join Date: Sep 2010 Posts: 2	size of drain pipe I live in a condo. the unit above me has a washer. the waste line I want to tie into is 2". Is that large enough line to carry water from both units?

09-19-2010, 08:45 PM	#4
oh'mike Super Moderator   Join Date: Sep 2009 Location: Kane county,Illinois Posts: 16,254	size of drain pipe You should be o.k---Hard to tell without actually seeing the piping--You will need to have a vent pipe within 5 feet (I believe)--There are several licensed plumbers here--Let's see what they have to say-- If you can post a picture or a sketch of the plumbing--drains and vent--that would be very helpful.--Mike--

09-19-2010, 09:03 PM	#5
TheEplumber call me E     Join Date: Jul 2010 Location: Idaho Posts: 3,868	size of drain pipe A 2" horizontal pipe will handle 8 drainage fixture units. 2" vertical pipe will handle more so you will be ok. But plese read this thread in regards to suds relief- Multi-Units Like oh'Mike said- 1.5 in. vent is needed Last edited by TheEplumber; 09-19-2010 at 09:06 PM.