Leaking Main Drain Clean Out Plug. - Plumbing - DIY Home Improvement | DIYChatroom

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


Thread Tools Display Modes
Old 10-25-2010, 08:07 PM   #1
Join Date: Oct 2010
Posts: 1
Rewards Points: 10

Leaking main drain clean out plug.

Every 5 years or so my main drain backs up due to roots in the pipe out to the street sewer line. Just had them cleaned out again.

M y problem is with the drain plug: it's leaking, the reason being that the threads on the plug are too worn/stripped to tighten it properly. This, in turn, seems to be caused by corroded/damaged threads in the old cast iron pipe which seem to be rounded off rather severely. They also seem to have built up quite an accumulation of rust and who-knows-what, essentially closing the size of the opening. (I purchased a new plug of the correct size but it won't even begin to go on due to the closing up of the original pipe hole diameter.

It seems to me that the threads in the clean-out access hole need to be re-tapped. Am I right? Is this possible and, if so, how does one do this?

Any help or alternate suggestions would be much appreciated.


dakornblum is offline   Reply With Quote
Old 10-25-2010, 09:44 PM   #2
Join Date: Aug 2010
Posts: 601
Rewards Points: 500


you don't have to spend 25 bucks, it's the first pic i found. home depot and lowes will have them for under 10 bucks, take the old one with you to get the correct size


the_man is offline   Reply With Quote
The Following User Says Thank You to the_man For This Useful Post:
dakornblum (10-27-2010)
Old 10-26-2010, 06:20 AM   #3
Join Date: Dec 2008
Location: Wilmington, DE
Posts: 3,118
Rewards Points: 2,000

and before you insert/tighten the expansion plug, fill the nasty iron threads with some plumbers putty.
Just Bill is offline   Reply With Quote
The Following User Says Thank You to Just Bill For This Useful Post:
dakornblum (10-27-2010)

Thread Tools
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
Partially blocked main drain? jimithing78 Plumbing 4 05-31-2010 01:29 PM
Water Backing up Though hole in basement dynamis Plumbing 3 06-15-2009 05:11 PM
Main drain water back ups destroyer427 Plumbing 7 04-07-2009 12:58 PM
roots in main drain jerry1967 Plumbing 5 10-28-2008 03:57 PM
PVC drain pipe leaking at joint, 2 part epoxy last? harleysilo Plumbing 3 09-26-2006 12:29 PM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1