Good Sam Club Open Roads Forum: Trouble with leaking around toilet flange
Open Roads Forum Already a member? Login here.   If not, Register Today!  |  Help

Newest  |  Active  |  Popular  |  RVing FAQ Forum Rules  |  Forum Posting Help and Support  |  Contact  

Search:   Advanced Search

Search only in Tech Issues

Open Roads Forum  >  Tech Issues

 > Trouble with leaking around toilet flange

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
draboo

Cypress RV Park, Myrtle Beach,SC

Full Member

Joined: 05/09/2013

View Profile



Good Sam RV Club Member

Offline
Posted: 06/19/21 08:17pm Link  |  Quote  |  Print  |  Notify Moderator

I have a Thedfod 31112 toilet. When the blackwater tank was overfilled,it leaked from the the floor seal. I've had this problem in the past. I have three questions:

1. Should that seal on the floor prevent water from leaking when it gets over full? Or is that gasket just to prevent odors to come up and not seal from water leakage? I've had this toilet out about 4 times for various reasons and replaced the ring with a new one every time.

2. When i install the toilet, I cannot feel any compression, or seal betweenl the toilet and the ring. Could the flange be so high that it prevents the toilet from sealing?

3. If the flange is to high to prevent the proper sealing, can I find a thicker gasket to compensate? The flange on the tank is glued in, so it cannot be moved.

Thanks for any and all suggestions. I've searched online and cannot find anything about finding a thicker gasket, although I thought I did read about someone somewhere getting one from a plumbing wareeshouse.

Brad N. Myrtle Beach,SC

3 tons

NV.

Senior Member

Joined: 03/13/2009

View Profile


Offline
Posted: 06/19/21 09:43pm Link  |  Quote  |  Print  |  Notify Moderator

I’ve had the same problem…So I whittled down to fit snd installed a convention wax ring (i.e. wax only-no plastic) to supplement the O-ring…

3 tons

BobsYourUncle

Calgary Alberta Canada

Senior Member

Joined: 12/12/2003

View Profile


Offline
Posted: 06/20/21 07:33am Link  |  Quote  |  Print  |  Notify Moderator

draboo wrote:


The flange on the tank is glued in, so it cannot be moved.


Are you sure it is glued in?

One of my first posts on this forum, if not my very first one, was asking how the toilet flange came off. I think some said it was glued in, but others told me it was threaded.

On mine I think there were a few screws into the floor. After taking the screws out, I used a blunt drift punch and a hammer, rotated the flange counter clockwise out of the tank. It came out very easily when I knew how.

I suggest you try that, and replace the flange with a new one, checking the size and clearances etc to ensure you get proper compression on the new gasket.

Also check the bottom of the toilet for any irregularities. Put a small straightedge across the outlet, moving it side to side and rotating it to make sure it is perfectly even right across and not warped.


2007 GMC 3500 dually ext. cab 4X4 LBZ
Dmax/Allison

2007 Pacific Coachworks Tango 306RLSS - 32'

RV Rebuild Website
Site is live, finally launched Aug 22, 2021 @ 6:53 PM
.


stevenal

Newport, OR, USA

Senior Member

Joined: 03/16/2004

View Profile


Offline
Posted: 06/20/21 12:02pm Link  |  Quote  |  Print  |  Notify Moderator

I avoid going much past 2/3, I don't want sudden braking to cause a spill.
I recently changed the flush valve on my Thetford. The kit came with a new gasket, which I used. I found the gasket easily moved off center, and it took several tries to get it right. I had to open the valve and look down the throat to see if the gasket was even. You should be able to see the extent of gasket compression in a similar manner.


'18 Bigfoot 1500
Torklifts and Fastguns
'17 F350 Powerstroke Supercab SRW LB 4X4

wolfe10

Texas

Senior Member

Joined: 10/08/2000

View Profile


Offline
Posted: 06/20/21 01:13pm Link  |  Quote  |  Print  |  Notify Moderator

I am not a fan of wax rings in an RV, as normal going-down-the-road vibration can cause gaps.

Better are the silicone or other compressible gaskets that work with the motion of the rig.

And, none are designed to hold against PSI from an overfilled tank. For pete- sake, drain it before it gets that full!


Brett Wolfe
Ex: 2003 Alpine 38'FDDS
Ex: 1997 Safari 35'
Ex: 1993 Foretravel U240

Diesel RV Club:http://www.dieselrvclub.org/

draboo

Cypress RV Park, Myrtle Beach,SC

Full Member

Joined: 05/09/2013

View Profile



Good Sam RV Club Member

Offline
Posted: 06/20/21 05:31pm Link  |  Quote  |  Print  |  Notify Moderator

The last incident was caused from "friends" who we allowed to stay in the motorhome.that didn't follow instructions. So I had to rip out the flooring, dry everything out for a week, and this week am having sheet vinyl installed again.

I'm confused about how well of a seal that rubber/foam ring provides. And if you can "feel" the ring compress when you install the toilet before you tighten the bolts. I put the toilet back down temporarily today and I couldn't feel the ring compress when the toilet was sitting but not bolted down.

3 tons

NV.

Senior Member

Joined: 03/13/2009

View Profile


Offline
Posted: 06/20/21 10:05pm Link  |  Quote  |  Print  |  Notify Moderator

draboo wrote:

The last incident was caused from "friends" who we allowed to stay in the motorhome.that didn't follow instructions. So I had to rip out the flooring, dry everything out for a week, and this week am having sheet vinyl installed again.

I'm confused about how well of a seal that rubber/foam ring provides. And if you can "feel" the ring compress when you install the toilet before you tighten the bolts. I put the toilet back down temporarily today and I couldn't feel the ring compress when the toilet was sitting but not bolted down.


You won’t feel it compress - I’ve never felt mine compress, the O ring seems only minimalist-ornamental to me - trust that this malady is uber common…

3 tons

draboo

Cypress RV Park, Myrtle Beach,SC

Full Member

Joined: 05/09/2013

View Profile



Good Sam RV Club Member

Offline
Posted: 06/21/21 04:21am Link  |  Quote  |  Print  |  Notify Moderator

3 tons wrote:

draboo wrote:

The last incident was caused from "friends" who we allowed to stay in the motorhome.that didn't follow instructions. So I had to rip out the flooring, dry everything out for a week, and this week am having sheet vinyl installed again.

I'm confused about how well of a seal that rubber/foam ring provides. And if you can "feel" the ring compress when you install the toilet before you tighten the bolts. I put the toilet back down temporarily today and I couldn't feel the ring compress when the toilet was sitting but not bolted down.


You won’t feel it compress - I’ve never felt mine compress, the O ring seems only minimalist-ornamental to me - trust that this malady is uber common…

3 tons


Thank you for your response. I'm finally done searching. [emoticon]

JJnLilly

Ohio

Senior Member

Joined: 05/29/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 08/09/21 04:18pm Link  |  Quote  |  Print  |  Notify Moderator

Toilet in our unit began to wobble so when got home did the deed and removed it and found the mounting flange was broken. Flange is glued into the black tank so no real way to just r&r the flange. Looking for a good way to repair

* This post was edited 08/10/21 07:58am by JJnLilly *


2007 Ram 2500 QC CTD
2014 Open Range 337RLS

RLS7201

Beautyful Downtown Gladstone, MO

Senior Member

Joined: 10/26/2002

View Profile


Offline
Posted: 08/09/21 04:48pm Link  |  Quote  |  Print  |  Notify Moderator

When I mounted our commode, it didn't touch the floor until I tightened the bolts, which compressed the seal. I intentionally over filled the black tank, until it flowed into the commode with the flush valve held open. The seal did not leak.
Maybe you could use 1 1/2 or 2 seals glued together.

Richard


95 Bounder 32H F53
460/528 stroker
Web Master
MWPSchooners.com
First brake job
1941 Hudson


Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next

Open Roads Forum  >  Tech Issues

 > Trouble with leaking around toilet flange
Search:   Advanced Search

Search only in Tech Issues


New posts No new posts
Closed, new posts Closed, no new posts
Moved, new posts Moved, no new posts

Adjust text size:




© 2021 CWI, Inc. © 2021 Good Sam Enterprises, LLC. All Rights Reserved.