3 inch copper to 3 inch pvc

Reply

  #1  
Old 05-31-03, 09:27 PM
edsjr's Avatar
Member
Thread Starter
Join Date: Sep 2001
Location: Springfield IL
Posts: 77
Received 0 Votes on 0 Posts
3 inch copper to 3 inch pvc

I am remodeling a 38 year old house that has all copper drain pipe. I need to connect 3 inch pvc to the 3 inch copper, I have tried ferncos but I dont really trust them as I was unable to find one for this specific purpose so the size isnt exactly right. Is it possible to find a female threaded 3" copper fitting?

Thanks


Ed.
 
Sponsored Links
  #2  
Old 05-31-03, 10:45 PM
Mike Swearingen's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Dec 1999
Location: Northeastern NC On The Albemarle Sound
Posts: 10,952
Received 0 Votes on 0 Posts
Cool

A Fernco coupling would be fine for this purpose, but if you prefer, you can use a no-hub coupling.
Good Luck!
Mike
 
  #3  
Old 06-01-03, 07:21 AM
poleaxed
Visiting Guest
Posts: n/a
They also have some things called low-flex no hubs which are like a heavy duty fernco.
Here in Ohio they are code.Inspectors look for the yellow label on them.
 
  #4  
Old 06-01-03, 07:54 AM
notuboo's Avatar
Member
Join Date: Sep 2001
Location: Kansas City MO
Posts: 1,780
Received 0 Votes on 0 Posts
You need to go to a plumbing supply house and look for a fernco that is for that exact size. It will be listed as 3" CI/PVC - 3"CU. One side will have a thinner rubber wall which is the CI/PVC side.
If you do not trust this, look at the shielded fernco's (Mission Clay coupler) that have the stainless steel band that supports the rubber to a higher degree. These are also made the exact size for any number of pipe sizes and choices between pipe material.

These are your 2 easiest choices for what you want to do.

Good luck with your project, let us know how it turned out....
 
  #5  
Old 06-01-03, 08:46 AM
T
Member
Join Date: Jan 2002
Location: Chicago
Posts: 1,915
Received 0 Votes on 0 Posts
You could also always simly sweat a 3" threaded male or female adaptor to that pipe.
 
  #6  
Old 06-01-03, 05:55 PM
edsjr's Avatar
Member
Thread Starter
Join Date: Sep 2001
Location: Springfield IL
Posts: 77
Received 0 Votes on 0 Posts
the problem with sweating a 3" adapter to it is finding the darn thing.........maybe our hardware stores are lacking in plumbing stuff here but they dont have anything that big.
 
  #7  
Old 06-01-03, 08:01 PM
Plumber2000's Avatar
Member
Join Date: May 2000
Location: Eugene, Oregon
Posts: 5,841
Received 0 Votes on 0 Posts
Thought I answered this question, you can get this fitting at a plumbing supply house, if not bet you can find and order one online somewhere.
 
  #8  
Old 06-01-03, 08:46 PM
Ragnar's Avatar
Banned. Rule And/Or Policy Violation
Join Date: Nov 2002
Location: Albuquerque
Posts: 1,349
Received 0 Votes on 0 Posts
A fernco is both code and the right way to go... In many cases, the threaded connection won't even be code, and that is assuming that you can even effectively sweat the 3" adapter... Soldering 1/2" to 1" is very easy, but 3" takes some skill and practice...
 
  #9  
Old 06-01-03, 08:53 PM
Plumber2000's Avatar
Member
Join Date: May 2000
Location: Eugene, Oregon
Posts: 5,841
Received 0 Votes on 0 Posts
Threaded fitting are code here, the thing about the fernco is unless you can find a fernco 3 x 2-3/4" which if thay make it, I never seen one or really needed to have to get one, if you use a 3 x 3 fernco between the copper and the pvc, the pipe will never be in-line of each other, which can leave you and edge for any waste to collect at that point, and we all know what happens afterwards, if you go with a 3" copper fitting, get a female adaptor and the use a 3" pvc male adaptor screwed into it.
 
Reply
Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Thread Tools
Search this Thread
 
Ask a Question
Question Title:
Description:
Your question will be posted in: