I'm a neophyte with plumbing, although I don't have a problem replacing faucets
and the like. However, for some reason, I'm having a problem configuring drain
pipes, of all things.
When I replaced the faucet in my bathroom, I saw that the prior drain tail was
installed with a flexible PVC coupler:
http://goo.gl/mrQMd (Home Depot link)
As best as I can tell, the reason the coupler was used is that the PVC drain
pipe coming out of the wall has an adapter or reducer on it that causes it to
stick about an inch too far out of the wall. The P trap cannot be moved closer
to the wall, so it will not line up with the tail. The coupler has failed
(cracked from age) and I want to replace the pipes with the correct parts.
What size drain pipe is coming out of the wall? 2"? Is the reducer converting
from 2" to 1-1/2"? The coupler above indicates that it is 1-1/2" and 1-1/4".
What pipes are 1-1/4"? The tail seems like it is smaller than the drain pipe.
It's hard to get the coupler to grab the tail tightly. It looks like there is a
beveled washer that adapts the larger coupler to the smaller tail.
I think my solution is going to be to saw the drain off flush with the wall,
open up the wall a little, and cement a new reducer onto the drain. The
challenges are 1) I don't understand the pipe sizes to make sure I have the
right parts, and 2) the hardware store is 15 miles away in normally heavy
Any educational clarification that you can provide about pipe sizes and piping
techniques will be appreciated.