Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Plumbing

CLICK HERE AND JOIN OUR COMMUNITY TODAY...IT'S FREE!

Reply
 
Thread Tools Search this Thread Display Modes
Old 05-27-2011, 01:33 PM   #1
Newbie
 
Join Date: May 2011
Posts: 9
Rewards Points: 10
Default

Tape or Joint Compound


I installed a new shower and the cpvc fitting to the mixer valve is leaking. I used teflon tape on the cpvc threads and tightened twice but still leaks a little. I plan to buy a transition union and replace the cpvc fitting, it is 1/2 inch. Should I use teflon tape or pipe thread compound on the male threads on the transition union? The male threads will screw directly into the mixer valve and I will glue the cpvc supply line into the other end.

Thanks

bigwill is offline   Reply With Quote
Old 05-27-2011, 02:29 PM   #2
Member
 
Join Date: Aug 2010
Posts: 1,526
Rewards Points: 1,000
Default

Tape or Joint Compound


A union does not need tape or dope when done properly. Why not just back out your connection to the shower valve, clean it, tape & dope it, and reinsert?

VIPlumber is offline   Reply With Quote
Old 05-27-2011, 02:37 PM   #3
Newbie
 
Join Date: May 2011
Posts: 9
Rewards Points: 10
Default

Tape or Joint Compound


I actually need a transition male adapter to screw into the brass female mixer valve, not a union. I tried the cpvc male with teflon tape into the mixer twice but still leaks a little. I have been reading many opinions on which to use on male threads and I cant seem to get a most popular response. Some use only tape, some only dope, some use both on same fitting, some use 1 sort of combination on metal and something different on cpcv. Also if use dope on brass threads, rectorseal 5 or T plus 2?

Thanks
bigwill is offline   Reply With Quote
Old 05-27-2011, 07:40 PM   #4
moderator
 
TheEplumber's Avatar
 
Join Date: Jul 2010
Location: North Idaho
Posts: 7,030
Rewards Points: 2,246
Default

Tape or Joint Compound


Using a cpvc male adapter with brass threads? Tape and dope your connections
TheEplumber is online now   Reply With Quote
Old 05-27-2011, 08:34 PM   #5
Member
 
Join Date: Aug 2010
Posts: 1,526
Rewards Points: 1,000
Default

Tape or Joint Compound


Plastic into brass? Be very careful as cross threading is done quite easily.
VIPlumber is offline   Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

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 Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
Wrong type of Joint Compound or Tape bigwill Drywall & Plaster 5 05-18-2011 11:30 AM
Will joint compound stick to Zinsser 1-2-3? Lovegasoline Building & Construction 13 09-28-2009 10:55 AM
Joint compound to smooth old paint layers. gmhut Painting 1 05-03-2009 05:50 PM
Hairline crack in joint compound elbee Building & Construction 10 12-02-2008 05:57 PM
Teflon tape or teflon pipe joint compound? zel Plumbing 1 04-02-2007 09:54 PM




Top of Page | View New Posts

Copyright © 2003-2014 Escalate Media. All Rights Reserved.