Odd Size Cast Iron Hub - Plumbing - DIY Home Improvement | DIYChatroom
Advertisement


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 04-12-2015, 01:12 AM   #1
Mad Scientist
 
Join Date: Dec 2009
Location: Minnesota
Posts: 951
Default

Odd size cast iron hub


Hey folks, I finally have my very own house to work on, and I could use a little advice.

I've got a completely butchered drain for my kitchen and bathroom, 1.5" PVC going into a cast iron stack. It was leaking badly at the connection between the PVC and cast, and the previous owner had gobbed all kinds of silicone and other various sealants on the joint to try to make it stop.

When I cut all that apart, I found a 1.5" to 2" donut jammed into the hub on the cast iron tee. I figured I could just try replacing it with one that fits a bit better, but I can't seem to find such a thing.

The hub in the cast iron tee measures about 3.25" ID, and all I can find are 2" donuts that have about a 3" OD, which of course won't seal in the hub.

I toyed with the idea of trying to apply a liberal amount of plumber's putty or silicone around the donut, but I doubt it'll work.

Anyone know of a product that'll help me out here?

Thanks!
McSteve is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-12-2015, 12:50 PM   #2
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 5,690
Rewards Points: 1,926
Default


http://www.homedepot.com/p/Fernco-3-...5yc1vZbqpfZ4hs
Ghostmaker is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-12-2015, 01:31 PM   #3
Member
 
Join Date: Jan 2014
Location: Central Kentucky
Posts: 4,356
Rewards Points: 8,629
Default


Some times the hubs are an off size and the ferncos wont bite. The one time I encountered that I resorted to oakum and then packed lead shavings on top of that. It was a real PITA and may not work on a horizontal joint.

The only approved way to do it is to go below the hub, cut the pipe and and use a compression fernco coupler. I did not have that option for the fix above.
__________________
Colbyt
Retired drapery and home furnishings installer.
Fact: World-wide 96.5% of Covid-19 victims fully recover
Colbyt is offline   Reply With Quote
Sponsored Links
Advertisement
 
Old 04-12-2015, 05:10 PM   #4
Member
 
Join Date: Mar 2013
Location: Ohio
Posts: 5,690
Rewards Points: 1,926
Default


I guess you get to cut it out and use proflex band couplings not the all rubber ones.
Ghostmaker is offline   Reply With Quote
The Following User Says Thank You to Ghostmaker For This Useful Post:
ben's plumbing (04-12-2015)
Old 04-12-2015, 05:14 PM   #5
Member
 
Join Date: Oct 2011
Location: PA
Posts: 5,918
Rewards Points: 582
Default


pictures are worth 1000 words or in your case an answer to your question
ben's plumbing is offline   Reply With Quote
Old 04-12-2015, 09:48 PM   #6
Mad Scientist
 
Join Date: Dec 2009
Location: Minnesota
Posts: 951
Default


I neglected to take a photo of the situation prior, but here's what I've got right now:



That's 1.5" PVC into a 2" reducer into a 2" to 3" fernco, clamped around the outside of the hub. The hub is about 1/4" smaller than the fernco, but I was able to clamp it down enough.

I don't like it much, and I think it still seeps a little around the edge. I might have to cut out the T and replace it all with PVC, but I really don't want to.
McSteve is offline   Reply With Quote
Old 04-13-2015, 06:15 AM   #7
Retired Moderator
 
Join Date: Sep 2009
Location: Kane county,Illinois
Posts: 25,728
Rewards Points: 7,174
Default


If you have a plumping supply house close by--call them--my supplier carries sizes that the big home stores don't---saved me several times---
__________________
New members: Adding your location to your profile helps in many ways.--M--
oh'mike is offline   Reply With Quote
The Following User Says Thank You to oh'mike For This Useful Post:
Colbyt (04-13-2015)
Sponsored Links
Advertisement
 
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
2" Cast Iron Shower Drain - Adapter/Options? LowlyDIYer Plumbing 19 10-06-2014 10:41 AM
Cast Iron to ABS - What Coupling? Jaxx Plumbing 1 09-17-2014 05:16 PM
PVC to Cast Iron circa 1985 Perry401 Plumbing 4 07-15-2013 02:09 PM
replacing cast iron pipe davemarz Plumbing 1 05-20-2011 09:16 PM
cast iron or pvc treerat Plumbing 1 03-29-2011 06:38 AM




Top of Page | View New Posts