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Home > Archive > Plumbing forum > June 2005 > joining 1 1/2 inch pvc and 1 1/2 inch copper
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joining 1 1/2 inch pvc and 1 1/2 inch copper
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| Eric and Megan Swope 2005-06-16, 2:28 pm |
| To make a long story short, my metal drain tailpiece that I connect my trap
to for my laundry sink has corroded in spots (probably 40 years old) and has
developed a leak. Instead of sweating off the old tail piece to where it
goes into the 1 1/2 inch copper drain pipe, can I hacksaw it off, back far
enough on the drain pipe to make sure I get all the tail piece, and join a 1
1/2 inch pvc tail piece to the 1 1/2 copper using a fernco adapter? Since
it is not pressurized, I figured it would work as long as I tighten the
clamps enough.
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| Speedy Jim 2005-06-16, 2:28 pm |
| Eric and Megan Swope wrote:
quote:
> To make a long story short, my metal drain tailpiece that I connect my trap
> to for my laundry sink has corroded in spots (probably 40 years old) and has
> developed a leak. Instead of sweating off the old tail piece to where it
> goes into the 1 1/2 inch copper drain pipe, can I hacksaw it off, back far
> enough on the drain pipe to make sure I get all the tail piece, and join a 1
> 1/2 inch pvc tail piece to the 1 1/2 copper using a fernco adapter? Since
> it is not pressurized, I figured it would work as long as I tighten the
> clamps enough.
>
>
Sounds good; there is one made just to fit that app.
Jim
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| Doug Miller 2005-06-16, 2:28 pm |
| In article <x3oie.12332$4d6.11359@trndny04>, "Eric and Megan Swope" <swope1221@verizon.net> wrote:
quote:
>To make a long story short, my metal drain tailpiece that I connect my trap
>to for my laundry sink has corroded in spots (probably 40 years old) and has
>developed a leak. Instead of sweating off the old tail piece to where it
>goes into the 1 1/2 inch copper drain pipe, can I hacksaw it off, back far
>enough on the drain pipe to make sure I get all the tail piece, and join a 1
>1/2 inch pvc tail piece to the 1 1/2 copper using a fernco adapter? Since
>it is not pressurized, I figured it would work as long as I tighten the
>clamps enough.
Maybe - but there's a pretty significant difference in outside diameter.
Threaded adapters might work better.
--
Regards,
Doug Miller (alphageek at milmac dot com)
Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?
| |
| Eric and Megan Swope 2005-06-16, 2:28 pm |
| Thanks for your advice guys. Doug, for the threaded adapter, would any
sweating be required? Couldn't I take a 1 1/2 inch piece of pvc, and join
that to the 1 1/2 inch copper with the fernco, then pvc cement the pvc
tailpiece in the 1 1/2 inch pvc? I think this would resolve the issue with
the difference in O.D.between the copper and the pvc tailpiece. Thanks
again.
"Doug Miller" <spambait@milmac.com> wrote in message
news:h%oie.3126$tX5.2596@newssvr33.news.prodigy.com...
quote:
> In article <x3oie.12332$4d6.11359@trndny04>, "Eric and Megan Swope"
> <swope1221@verizon.net> wrote:
>
> Maybe - but there's a pretty significant difference in outside diameter.
> Threaded adapters might work better.
>
> --
> Regards,
> Doug Miller (alphageek at milmac dot com)
>
> Nobody ever left footprints in the sands of time by sitting on his butt.
> And who wants to leave buttprints in the sands of time?
| |
| Doug Miller 2005-06-16, 2:28 pm |
| In article <svrie.4287$Y36.247@trndny05>, "Eric and Megan Swope" <swope1221@verizon.net> wrote:
quote:
>Thanks for your advice guys. Doug, for the threaded adapter, would any
>sweating be required?
Yes - sweat a threaded fitting onto the copper, thread an opposite-sex PVC
threaded coupling onto that, and solvent-weld the PVC pipe into it.
quote:
> Couldn't I take a 1 1/2 inch piece of pvc, and join
>that to the 1 1/2 inch copper with the fernco, then pvc cement the pvc
>tailpiece in the 1 1/2 inch pvc? I think this would resolve the issue with
>the difference in O.D.between the copper and the pvc tailpiece. Thanks
>again.
Yes, *if* the fernco fitting will handle the two different sizes. I *think*
I've seen fittings like that, but don't remember for sure. If the fernco
fitting works, then you don't need the threaded adapters.
--
Regards,
Doug Miller (alphageek at milmac dot com)
Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?
| |
| Ned Flanders 2005-06-16, 2:28 pm |
| Those guys are don't sound very experienced.
Your description is not very clear but I think I understand what you are
trying to do.
There is a tailpiece that comes out of the bottom of the sink strainer.
This is the only
tailpiece you should have when you are done. That tailpiece will connect to
the PVC
trap etc.. with a desanco. If after the trap you then have to convert to
copper at what
sounds like a copper desanco then do as Doug said and use a threaded
adapter. There
is in fact a fernco that goes from cu to pvc,I think they are not to code,
but will work.
"Doug Miller" <spambait@milmac.com> wrote in message
news:5Zrie.2012$VS6.1290@newssvr19.news.prodigy.com...
quote:
> In article <svrie.4287$Y36.247@trndny05>, "Eric and Megan Swope"
> <swope1221@verizon.net> wrote:
>
> Yes - sweat a threaded fitting onto the copper, thread an opposite-sex PVC
> threaded coupling onto that, and solvent-weld the PVC pipe into it.
>
>
> Yes, *if* the fernco fitting will handle the two different sizes. I
> *think*
> I've seen fittings like that, but don't remember for sure. If the fernco
> fitting works, then you don't need the threaded adapters.
>
> --
> Regards,
> Doug Miller (alphageek at milmac dot com)
>
> Nobody ever left footprints in the sands of time by sitting on his butt.
> And who wants to leave buttprints in the sands of time?
| |
| maradcliff@UNLISTED.com 2005-06-16, 2:28 pm |
| On Tue, 17 May 2005 19:22:00 GMT, "Eric and Megan Swope"
<swope1221@verizon.net> wrote:
quote:
>Thanks for your advice guys. Doug, for the threaded adapter, would any
>sweating be required? Couldn't I take a 1 1/2 inch piece of pvc, and join
>that to the 1 1/2 inch copper with the fernco, then pvc cement the pvc
>tailpiece in the 1 1/2 inch pvc? I think this would resolve the issue with
>the difference in O.D.between the copper and the pvc tailpiece. Thanks
>again.
They do make an epoxy for gluing copper pipe together. I have never
used it, and would personally not use it on a supply pipe under
pressure, but for your drain pipe, I'd go for it. Just clean the
copper and glue the proper threaded fitting on, leave it dry, and
attach your pvc trap pieces as normal. I have seen that epoxy in the
plumbing dept. at Ace hardware and other places. (you might have to
let it dry overnight, so prepare to be without the sink for a day or
so, read the directions).
Mark
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| Stormin Mormon 2005-06-16, 2:28 pm |
| Some thread goop (Rectorseal 5?) on the threads when assembling. Helps
prevent leaks.
--
Christopher A. Young
Learn more about Jesus
www.lds.org
www.mormons.com
"Doug Miller" <spambait@milmac.com> wrote in message
news:5Zrie.2012$VS6.1290@newssvr19.news.prodigy.com...
In article <svrie.4287$Y36.247@trndny05>, "Eric and Megan Swope"
<swope1221@verizon.net> wrote:
quote:
>Thanks for your advice guys. Doug, for the threaded adapter, would any
>sweating be required?
Yes - sweat a threaded fitting onto the copper, thread an opposite-sex PVC
threaded coupling onto that, and solvent-weld the PVC pipe into it.
quote:
> Couldn't I take a 1 1/2 inch piece of pvc, and join
>that to the 1 1/2 inch copper with the fernco, then pvc cement the pvc
>tailpiece in the 1 1/2 inch pvc? I think this would resolve the issue with
>the difference in O.D.between the copper and the pvc tailpiece. Thanks
>again.
Yes, *if* the fernco fitting will handle the two different sizes. I *think*
I've seen fittings like that, but don't remember for sure. If the fernco
fitting works, then you don't need the threaded adapters.
--
Regards,
Doug Miller (alphageek at milmac dot com)
Nobody ever left footprints in the sands of time by sitting on his butt.
And who wants to leave buttprints in the sands of time?
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