Home Page link

Cu to PVC

Home| Search | About
Login Password
Register Now! Lost Password?

Home Repair - - If it ain't broken, don't fix it. Otherwise look here. 

Page 3 of 3       << first < 1 2 3 Bookmark this page:  YahooMyWeb Yahoo!  Google Google  Windows Live Favorites Windows Live  del.icio.us del.icio.us  digg digg  Add to Netscape Netscape
Subject Author Date
Cu to PVC Jimmie D 04-07-2008
|--> Re: Cu to PVC Jim Elbrecht04-07-2008
If you were  Registered and logged in, you could reply and use other advanced thread options
Posted by Don Young on April 7, 2008, 10:26 pm

> What the best way to connect Cu plumbing to a PVC supply line.
> Pipe is 3/4 inch.
>
> Ive fixed this a couple of time and had it professionally done but the
> screw together joint made of a threaded male PVC adapter and CU male
> threaded adapter eventually leaks. I am thinking I have an expansion issue
> here and I am going to try to make an expansion jiont using a loop of
> flexible copper to connect the two.
>
> Any other opinions are welcome and appreciated.
>
>
>
> Thanx
> Jimmie
>
Don't make it complicated. All you need is a PVC adapter with a male thread
and a copper adapter with a female thread. Threading a copper male fitting
into a PVC female adapter is likely to either split the PVC female adapter
or to leak and is not permitted by some codes/inspectors. Tape or sealer can
reduce the possibility of leaking.

Don Young



Posted by Bert Byfield on April 7, 2008, 11:09 pm
> Don't make it complicated. All you need is a PVC adapter with a
> male thread and a copper adapter with a female thread. Threading a
> copper male fitting into a PVC female adapter is likely to either
> split the PVC female adapter or to leak and is not permitted by
> some codes/inspectors. Tape or sealer can reduce the possibility
> of leaking. Don Young

Even simpler for us shameless DIY-ers is to use a rubber coupling that
has a mechanical pipe-clamp at each end and doesn't care if the pipe is
copper or plastic. This works for the big pipes, too, for the black
iron problems.





Posted by Jimmie D on April 8, 2008, 11:11 am

>> Don't make it complicated. All you need is a PVC adapter with a
>> male thread and a copper adapter with a female thread. Threading a
>> copper male fitting into a PVC female adapter is likely to either
>> split the PVC female adapter or to leak and is not permitted by
>> some codes/inspectors. Tape or sealer can reduce the possibility
>> of leaking. Don Young
>
> Even simpler for us shameless DIY-ers is to use a rubber coupling that
> has a mechanical pipe-clamp at each end and doesn't care if the pipe is
> copper or plastic. This works for the big pipes, too, for the black
> iron problems.
>
>
>
>
I knew they made thes for waste but I didnt know you could use them for
supply


Jimmie



Posted by Jimmie D on April 7, 2008, 11:21 pm

>
>> What the best way to connect Cu plumbing to a PVC supply line.
>> Pipe is 3/4 inch.
>>
>> Ive fixed this a couple of time and had it professionally done but the
>> screw together joint made of a threaded male PVC adapter and CU male
>> threaded adapter eventually leaks. I am thinking I have an expansion
>> issue here and I am going to try to make an expansion jiont using a loop
>> of flexible copper to connect the two.
>>
>> Any other opinions are welcome and appreciated.
>>
>>
>>
>> Thanx
>> Jimmie
>>
> Don't make it complicated. All you need is a PVC adapter with a male
> thread and a copper adapter with a female thread. Threading a copper male
> fitting into a PVC female adapter is likely to either split the PVC female
> adapter or to leak and is not permitted by some codes/inspectors. Tape or
> sealer can reduce the possibility of leaking.
>
> Don Young
>

Don, that what I got now and eventually it leaks. I think its due to
expansion and contraction pulling and pushing on the PVC/Cu joint.

The house wasw built in 74 and I know it has started leaking at least 5 time
since 1990. My wife says it been a regular problem since the house was
built. Its in a utility room and doesnt leak bad enough to cause any damage
as long as you can monitor it.

Jimmie



Posted by Jimmie D on April 12, 2008, 10:21 am

> What the best way to connect Cu plumbing to a PVC supply line.
> Pipe is 3/4 inch.
>
> Ive fixed this a couple of time and had it professionally done but the
> screw together joint made of a threaded male PVC adapter and CU male
> threaded adapter eventually leaks. I am thinking I have an expansion issue
> here and I am going to try to make an expansion jiont using a loop of
> flexible copper to connect the two.
>
> Any other opinions are welcome and appreciated.
>
>
>
> Thanx
> Jimmie
>

Well, I got down to Fl this week and fixed the plumbing using my hose
connection.
The water had been off all winter and the plumbing was at room temp which
Friday was about 85F.
After the repair I checked the distance between the hose clamps on each end
of the hose then turned on the water.
After leting the water run for a few minutes I checked the distance again
and the clamps had moved apart by almost an 1/8 of an inch.
This is making me feel very warm and fuzzy that my diagnosis was right.
Even if I was dead wrong about why I dont think I will ever have another
problem with this connection



Page 3 of 3       << first < 1 2 3

Contact Us | Privacy Policy

XML SitemapXML Sitemap