Shelly wrote:
Hello ~

My husband and I are trying to remove a short piece of rusty galvanized
piping (waste pipe) underneath our kitchen sink. We are using a pipe
wrench, but it is not budging! We have tried both WD40 and Vinegar
(this was suggested by our local hardware store).

We have to have the pipe wrench facing down, on the left side of the
pipe, because the dishwasher is to the right. We could use a smaller
pipe wrench on the right side, but we can not get good leverage on it.

Here are some pictures so you can see what we are working with:
http://members.cox.net/shelly1205/Plumbing.html

Can somebody PLEASE help us? We have come so far in our garbage
disposal replacement, and don't want to have to call the plumber now!!

Thank you!

~Shelly


Ok, quit fussing around and cut out a circle
around the pipe, a hole with a diameter of at
least 4-6" larger than the pipe. That allows you
to move the electric cable out of the way and get
to the pipe behind the wall. Next put fiber glass
or asbestos between the pipe and burnable
surfaces and heat the pipe with a propane torch.
While it is still hot you can, if you wish also
squirt WD-40 or a penetrating oil on the joint
that you wish to loosen. You can heat and cool
the joint several times if needed as each time you
do you tend to loosen the rusted joint.

When you finish, repair the hole by gluing a piece
of plaster board (drywall) or better a piece of
1/4" plywood to the existing plaster. It's under
the sink so if you paint it all the same no one
will ever notice it. Good Luck.