Re: Laundry Drain
Posted by e-plumber on December 28, 2003 at 15:11:37:
In response to Re: Laundry Drain
: : : : I am moving a washer from the basement to the first floor. I ran a 1 1/2" drain approx 30' to the existing utility tub in the basement. I installed no trap or vent because i am going into a utility tub. Before i close up the wall, is 1 1/2" large enough?

: : :
: : : NO.
: : : Washers require a 2" drainage line.
: : : Indirect waste should be on the same floor.
: : : You still need a p-trap and vent.
: : : This is a really bad install and I would rethink the whole thing before I closed up the wall.
: : : If you decide to go with this, check your homeowner's insurance to see if it covers flooding caused by incorrect, unpermitted, uninspected plumbing.
: : : Deb
: : : The Pipewench

: : Deb I agree with your advice except I do not understand the value of the P trap on a 2" indirect line. I would read if you care to explain. LonnythePlumber

: Code.
: Indirect waste over 5' in length shall have a p-trap installed. Indirect waste over 15' must have a p-trap and a vent.
: Deb
: The Pipewench

The code is similar here concerning traps on indirect drain lines.
The reason behind it is to prevent foul odors from indirect drain lines from entering the living space. I see this a lot in restaurants, cafes and diners.

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