"DerbyDad03" wrote in message
...
I've searched a few plumbing sites, but couldn't find what I was
looking for. Maybe you guys that know the plumbing sites better than
me can help out.

I'm looking for either a 3 1/2" to 1 1/2" rubber expansion reducer for
a cast iron cleanout or a combination of a rubber plug and a PVC
reducer to fit the same. I need to run a 1 1/2" sink drain into the
reducer.

HD carries and 4" to 3" reducer plug and a PVC 3" to 1 1/2" reducer,
but my cleanout is 3 1/2".

The threads on the cleanout are shot so a cast iron plug only catches
the first thread or so. In addition, the bottom of the angled cleanout
is below the concrete slab so the large nut-shape rim of the cast iron
plug that my local parts store carries hits the floor before *any*
threads can catch.

I had a smaller (no large nut-shape rim) 1 piece cast iron reducer
that I had to break out to snake the drain and no one seems to carry a
matching part. I bought that reducer many years ago at the same store
I went to yesterday but they said that parts for 3 1/2" cast iron are
getting harder to find.

Due to the layout of the basement bathroom, extending the cleanout
further into the room with a combination of parts is not a viable
option, so I need something fairly compact.

Any advice would be very welcome.



Please correct me if I have not understood correctly.

You have a 3.5" threaded connection because you removed the cleanout plug.
That would make this a cleanout adapter mounted in a 4" cast iron hub. That
is the only thing 3.5" that I have ever seen.

A PVC chevron plug would solve your clearance problem and the plastic might
thread where the metal won't but you want to adapt and install a 1.5" drain
line here.

The normal action here would be to remove the adapter body, clean the hub,
use a 4" donut rubber adapter and either install a new CO or convert to
pipe. That may not be possible for you because of your floor and getting to
it. If it were mine this is the route I would go. Half a day and a few
drill bits later it would be out of there.

Searching the web for a 3.5" male adapter the only thing I could find was
one made by Carlton for conduit. So you might find that at an electrical
supply house. I don't think the grey PVC meets plumbing code but then this
install does not either. If it works, it works.

I suggest you call a couple of real supply houses both in the plumbing and
electrical fields. This is not something you are going to find at the BORG.

If you want to I will call my local supply house. They will at least know
if the part is made in the plumbing field. They carry a lot of weird stuff.


--
Colbyt
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