Reply
 
Thread Tools Display Modes
 
Old 03-08-2019, 09:17 PM   #1
Junior Member
 
Join Date: Oct 2017
Posts: 11
Replace Toilet in 3921GK

I would like to replace my factory Thetford toilet with a Dometic 320 but have a couple of questions I'm hoping someone can help me with. I've verified that I have the necessary flange dimension of 11 inches from the rear wall to the center of the drain so the Dometic toilet should fit. My concern is the overall length of the toilet. In my 3921GK I have a separate water closet from the shower. The water closet has a vanity in front of the toilet and with the existing Thetford toilet I've only got 15 1/4 inches from the front of the bowl to the cabinet. The Thetford is 19" deep and the Dometic 320 appears to be 22" deep. I do have about 3" of clearance behind the Thetford to the wall. I'm concerned that the Dometic 320 might extend to far forward and limit movement when using the vanity. It may not be an issue though if the Dometic sits closer to the rear wall.

If anyone has installed the Dometic 320 could you please provide me with a few measurements? I need the dimension from the back wall to the flange bolt, the dimensions from the back of the toilet to the wall and the overall length of the 320 toilet. If I can get these I should be able to calculate my front clearance. I'd sure appreciate it!
Attached Images
File Type: jpeg Toilet1.jpeg (99.1 KB, 10 views)
File Type: jpeg Toilet 2.jpeg (68.2 KB, 9 views)
PunksRedwood is offline   Reply With Quote
Old 03-16-2019, 09:21 PM   #2
Member
 
woodman1's Avatar
 
Join Date: Oct 2012
Posts: 77
Replaced my Thetford with a Dometic 320 this past fall because I didn't want to risk the consequences of another Thetford's foot pedal coming off and spewing water everywhere that happened with my last SOB 5th wheel. The flange bolts are 12 inches from the back wall. There is 1 1/2 inches between the back of the toilet to the wall. The measurement from the wall to the front of the toilet is 23 1/2 inches. In other words, looks like your measurements regarding the length of the 320 oval toilet are correct. It's really an easy change out.
__________________
woodman1
2017 F-350 SRW 4x4 CrewCab
2017 Redwood 36RL with Goodyear 17.5 G114 and MorRyde IS, Disc Brakes
TireMinder TPMS monitor/Slide covers
Fusion backup monitor
PullRite Superglide 2900 Hitch
woodman1 is offline   Reply With Quote
Old 03-17-2019, 08:34 PM   #3
Senior Member
 
NW Snowbirds's Avatar
 
Join Date: May 2013
Posts: 295
Send a message via AIM to NW Snowbirds
Changed out the Thetford toilet for a Dometic 320 in our 31SL. No problems with the fit and a much better toilet. The ball seal can be changed without removing or disassembling the toilet!
__________________
2012 Redwood 31SL chasing 2013 GMC 2500HD Duramax SRW
NW Snowbirds is offline   Reply With Quote
Old 03-18-2019, 05:52 PM   #4
Junior Member
 
Join Date: Oct 2017
Posts: 11
Quote:
Originally Posted by woodman1 View Post
Replaced my Thetford with a Dometic 320 this past fall because I didn't want to risk the consequences of another Thetford's foot pedal coming off and spewing water everywhere that happened with my last SOB 5th wheel. The flange bolts are 12 inches from the back wall. There is 1 1/2 inches between the back of the toilet to the wall. The measurement from the wall to the front of the toilet is 23 1/2 inches. In other words, looks like your measurements regarding the length of the 320 oval toilet are correct. It's really an easy change out.

This is exactly what I needed. I should have plenty of clearance to install this toilet! Thank you!
PunksRedwood is offline   Reply With Quote
Reply

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


» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

This website is not affiliated with or endorsed by Redwood RV or any of its affiliates. This is an independent, unofficial site.


All times are GMT +1. The time now is 12:05 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.