I'm in the process of installing a new, homemade shower pan (thanks
to the help of other posts) but am still in a dilema of how to install
the new clamping style drain. I currently have a regular drain (cup
with grate) embedded in concrete. I would love to have some kinda
simple adapter but fear I need to remove the old drain.
Some people recommended I just jackhammer the whole thing, trying not
to break the drain pipe. Is there a safer way (i.e. chisel?).
Should I expect when I get down the 2-3" that the drain will simply
unscrew from the existing pipe as well?
Thanks in advance.
You'll have to supply loads more info. If it's iron pipe, it may
be leaded into a cast iron fitting, just as one example. There are
dozens of scenarios possible.
You might be able to Sawzall the pipe just above the concrete and
add a Fernco No-Hub coupling to extend the pipe.
Maybe post some digital pics on a web site (Don't post to newsgroup).
Okay, I can take some digital photos but there's not much to show as
the pipe is still embedded in concrete. I don't know the type of
fitting but the house was built in 1957, although I believe the shower
was added later.
I can't sawzall the pipe above the concrete because it isn't
protruding above the concrete.
So theoretically, I would chisel away/jackhammer the concrete around
my drain below where it attaches to the drain pipe. Then should be
able, thru observation, determine if it can be unscrewed. If not, then
I will cut it, attach a coupler, then another piece of pipe that is
perhaps threaded for my new drain yes?
The drains I've seen at home depot are plastic so I take it the thread
is really the only way to mate plastic to metal.
You might try a masonry abrasive saw blade in a circ saw, if you
can stand the dust. Plunge cut 4 slices around the pipe. Then
chip out the remnants with chisel. You won't have to go very deep,
just enough to get a coupling on.
Use a Fernco coupling (HD has them). Will connect steel pipe to PVC
with no threads. I would definitely avoid going deep enough to find
out what the steel pipe is connected into. I can almost guarantee
a bigger project.
Thanks Jim. I was thinking about using my circular saw. When you say
avoid going deep do you mean say no more than 2"? I figured making a
square around the drain, chiseling it, but thought I might still be
challenging to get off the drain or rather determine if it was
threaded but that seems to be the only way.
Does this Fernco coupling have some sort of glue with it? I didn't
think there was an adhesive for metal to pvc.
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