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Waste pipe sizes and joining ABS with copper

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Waste pipe sizes and joining ABS with copper sparkyguy442 11-26-2006
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Posted by on November 26, 2006, 8:54 pm


I want to add a shower in the bathroom of my office. This is a
commercial structure.

The available copper waste pipe, unlike other pipe compositions,
actually measures 2 inches in diameter. I see in the home improvement
center that the 2 inch ABS is larger than 2 inches.

I'm going to use ABS for the shower waste pipes. It looks like most
showers use 1-1/2 inch plumbing.

The sewer pipe coming out of the slab is cast iron, and a copper waste
pipe (from a utility sink nearby) Y's into it using a copper elbow. A 2
inch rubber union (the kind with hose-clamps) connects the copper elbow
to the cast iron Y. I could replace the copper elbow with a Y (copper?)
and run the ABS into that.

How can I mate the ABS to the copper pipe or Y? Are there adapters to
go from one material/size to another (ie, 2 inch copper to 1-1/2 inch
ABS)?

Other suggestions?

Thanks,
Dave


Posted by Speedy Jim on November 26, 2006, 10:09 pm


sparkyguy442@yahoo.com wrote:

> I want to add a shower in the bathroom of my office. This is a
> commercial structure.
>
> The available copper waste pipe, unlike other pipe compositions,
> actually measures 2 inches in diameter. I see in the home improvement
> center that the 2 inch ABS is larger than 2 inches.
>
> I'm going to use ABS for the shower waste pipes. It looks like most
> showers use 1-1/2 inch plumbing.
>
> The sewer pipe coming out of the slab is cast iron, and a copper waste
> pipe (from a utility sink nearby) Y's into it using a copper elbow. A 2
> inch rubber union (the kind with hose-clamps) connects the copper elbow
> to the cast iron Y. I could replace the copper elbow with a Y (copper?)
> and run the ABS into that.
>
> How can I mate the ABS to the copper pipe or Y? Are there adapters to
> go from one material/size to another (ie, 2 inch copper to 1-1/2 inch
> ABS)?
>
> Other suggestions?
>
> Thanks,
> Dave
>

2" copper is 2 1/8" O.D.

Shower drains are 2" trade size.

There is a coupling to join "anything" to "anything". <g>
http://www.fernco.com/

I assume you are not too concerned with the niceties
of inspections and permits and venting requirements
on this job...

Jim

Posted by on November 26, 2006, 10:12 pm


well abs is kinda sucky so i would suggest PVC
but
there are 1-1/2 to 2 rubber union adaptors



>I want to add a shower in the bathroom of my office. This is a
> commercial structure.
>
> The available copper waste pipe, unlike other pipe compositions,
> actually measures 2 inches in diameter. I see in the home improvement
> center that the 2 inch ABS is larger than 2 inches.
>
> I'm going to use ABS for the shower waste pipes. It looks like most
> showers use 1-1/2 inch plumbing.
>
> The sewer pipe coming out of the slab is cast iron, and a copper waste
> pipe (from a utility sink nearby) Y's into it using a copper elbow. A 2
> inch rubber union (the kind with hose-clamps) connects the copper elbow
> to the cast iron Y. I could replace the copper elbow with a Y (copper?)
> and run the ABS into that.
>
> How can I mate the ABS to the copper pipe or Y? Are there adapters to
> go from one material/size to another (ie, 2 inch copper to 1-1/2 inch
> ABS)?
>
> Other suggestions?
>
> Thanks,
> Dave
>



Posted by on November 26, 2006, 10:23 pm


> well abs is kinda sucky so i would suggest PVC
> but there are 1-1/2 to 2 rubber union adaptors

-=-=-=-

I've learned that a 1-1/2 inch ABS pipe isn't really 1-1/2, but a 2
inch copper pipe is actually 2 inches. Will such an adapter fit both?
Is there such a thing as a "specialty" adapter for ABS to copper pipe,
since they seem to use different rulers for measurement? (c:

What's so bad about ABS?

Thanks,
Dave


Posted by on November 26, 2006, 11:50 pm


Just went and bought a 2 inch threaded male fitting (copper) and a Y
(ABS) and threaded female fitting (ABS). Will cut copper pipe and
solder male fitting and then thread into ABS female. Then glue the
female fitting to Y and away I go!

I already have 2 inch ABS pipe and fittings, so I thought I might do
the drain all in 2 inch. Any reason to not do this?

Thanks,
Dave


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