Compression Fitting Headaches

Reply

  #1  
Old 06-14-03, 03:10 PM
Tao
Tao is offline
Member
Thread Starter
Join Date: Jan 2002
Posts: 25
Compression Fitting Headaches

I'm going from copper to CPVC and I have a Pipe to Male fitting. The end over the copper is compression and it is giving me fits. I can't get it to stop dripping. Is there a secret to those fittings? I used tephlon tape. Is it possible I over-tightened it? Can they be over-tightened?

Thanks
 
Sponsored Links
  #2  
Old 06-14-03, 06:16 PM
Ed G
Visiting Guest
Posts: n/a
Yes a little trick is to put a little teflon paste on the inside of the ferrel(the little brass ring) then slip the fitting over and tighten just enough.
 
  #3  
Old 06-14-03, 06:22 PM
kaybyrd's Avatar
Member
Join Date: Feb 2002
Location: N.W. MS.
Posts: 1,774
EdG,

Thank you for the info. I was monitoring this question since I had the same one. I was curious as to what I was doing wrong. Thought I was going to have to call a plumber afterall.

Kay
 
  #4  
Old 06-14-03, 07:37 PM
Join Date: Dec 1999
Location: Northeastern NC On The Albemarle Sound
Posts: 10,952
Cool

Ed nailed it.
You use tape or pipe dope on the brass ring ferrule of a compression fitting, not the threads.
Mike
 
  #5  
Old 06-14-03, 08:31 PM
kaybyrd's Avatar
Member
Join Date: Feb 2002
Location: N.W. MS.
Posts: 1,774
I was putting it on the outside of the ring, but not on the inside. It had a slow leak. I was planning to replace the pipe since I thought it was out of round and causing the leak.

Kay
 
  #6  
Old 06-15-03, 05:15 AM
Join Date: Dec 1999
Location: Northeastern NC On The Albemarle Sound
Posts: 10,952
Cool

Kay,
Usually, you can use the old nut and ferrule onto a new compression fitting.
However, if the pipe is out of round, and you can't get it to stop dripping, and you have room, cut it off, clean it up and install a new nut and ferrule.
Good Luck!
Mike
 
  #7  
Old 06-15-03, 10:11 AM
kaybyrd's Avatar
Member
Join Date: Feb 2002
Location: N.W. MS.
Posts: 1,774
What has happened is the tee off the hot line under the kitchen sink is a mess. We discovered this when the dishwasher started leaking. It seems that they couldn't get a compression fitting to work there either so they have tubing with clamps from the extensions off the tee all the way down to the fitting in the dishwasher. The hose clamp at the dishwasher fitting kept blowing off.

The pipe is in such bad shape that I'm trying to remove the tee now and get back to the original pipe. I've purchased a dual outlet shut off so I can hook the dishwasher and sink to it. Now, I'm having problem with shutoffs in the line. The one under the sink doesn't work, the hot water heater shutoff doesn't completely work. I guess its time to shut off at the street. I just can't get the joints hot enough.

Kay
 
  #8  
Old 06-15-03, 01:17 PM
Join Date: Dec 1999
Location: Northeastern NC On The Albemarle Sound
Posts: 10,952
Cool

If you're trying to sweat apart joints, you have to completely shut off the water somewhere and drain the lines.
Turn off the breaker or gas to your water heater first.
Turn off the water at the meter if necessary, and open your lowest faucet for draining (outside spigot?) and highest and farthest faucets for air to allow the lines to drain.
You might try getting a dw hookup supply line. That shouldn't leak coming off of a new faucet and connecting to the dw.
Good Luck!
Mike
 
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
Display Modes