Journey with Confidence RV GPS App RV Trip Planner RV LIFE Campground Reviews RV Maintenance Take a Speed Test Free 7 Day Trial ×
RV Trip Planning Discussions

Go Back   iRV2 Forums > iRV2.com COMMUNITY FORUMS > Vintage RV's
Click Here to Login
Join iRV2 Today

Mission Statement: Supporting thoughtful exchange of knowledge, values and experience among RV enthusiasts.
Reply
  This discussion is proudly sponsored by:
Please support our sponsors and let them know you heard about their products on iRV2
 
Thread Tools Search this Thread Display Modes
 
Old 05-31-2023, 07:54 PM   #1
Senior Member
 
TT_Vert's Avatar
 
Join Date: May 2021
Posts: 378
Water inlet fitting question for those of you who have installe dometic toilets

This will apply to the 310/320 series and i'm sure many more. The manual states this is a 1/2" inlet. The issue is the 1/2" braided hose I got has the rubber gasket very close to the end of the threads (You will see in the pic). I assume this is to allow a thin walled nipple to seal well. But when you have a thicker walled fitting AND it has the first 1/8" w/ no threads I am only threading on about 1 thread which I don't like. I hope this makes sense and hopefully the pic will help. What water hose did you guys end up with?


Dave
Attached Thumbnails
Click image for larger version

Name:	Untitled.png
Views:	9
Size:	818.2 KB
ID:	394212  
__________________
1995 Fleetwood Southwind
TT_Vert is offline   Reply With Quote
Join the #1 RV Forum Today - It's Totally Free!

iRV2.com RV Community - Are you about to start a new improvement on your RV or need some help with some maintenance? Do you need advice on what products to buy? Or maybe you can give others some advice? No matter where you fit in you'll find that iRV2 is a great community to join. Best of all it's totally FREE!

You are currently viewing our boards as a guest so you have limited access to our community. Please take the time to register and you will gain a lot of great new features including; the ability to participate in discussions, network with other RV owners, see fewer ads, upload photographs, create an RV blog, send private messages and so much, much more!

Old 06-01-2023, 03:36 AM   #2
Senior Member
 
Join Date: Aug 2019
Location: Eastern outskirts of Dallas, TX
Posts: 3,939
A couple of thoughts -

1. Use a sharp box knife and cut that leading protrusion off of the PVC fitting. This should allow a better capture of the threads.

2. Switch to using a PEX connector.

Had a similar thing occur on a friends trailer RV last week - that trailer had a quick release outdoor shower attachment that the hose connection from inside the coach was poorly assembled. I happened to have a 1/2” PEX faucet coupler in my box but the rubber seal washer wouldn’t allow it to thread either.
But as opposed to what you have pictured, the male side wall fitting didn’t have a beveled ID to allow the washer to fit into and seal against. I used a sharp box knife to cut the smoothest bevel inside of t fitting.
It took some umpf, but I got the threads started and the assembly tightened together with several turns of threads.
__________________
‘91 Ultrastar Champion‘02 Georgie Boy Landau 8.1l Workhorse
‘03 Jeep Wrangler TJ 2018 Jeep Wrangler JK toad
MrMark52 is offline   Reply With Quote
Old 06-01-2023, 04:52 AM   #3
Senior Member
 
Isaac-1's Avatar
 
Join Date: Jun 2016
Location: SW Louisiana
Posts: 8,471
I installed a Dometic 320 about 5 years ago on our coach, and I think the hose I used was an Ace house brand hose from the local hardware store.
__________________
2002 Safari Trek 2830 on P32 Chassis with 8.1L w/ 400 watts solar 420Ah LiFePo4
2017 Jeep Cherokee Overland & 2007 Toyota Yaris TOADs with Even Brake,
Demco Commander tow bar and Blue Ox / Roadmaster base plates
Isaac-1 is online now   Reply With Quote
Old 06-01-2023, 07:34 AM   #4
Senior Member
 
TT_Vert's Avatar
 
Join Date: May 2021
Posts: 378
Quote:
Originally Posted by MrMark52 View Post
A couple of thoughts -

1. Use a sharp box knife and cut that leading protrusion off of the PVC fitting. This should allow a better capture of the threads.

2. Switch to using a PEX connector.

Had a similar thing occur on a friends trailer RV last week - that trailer had a quick release outdoor shower attachment that the hose connection from inside the coach was poorly assembled. I happened to have a 1/2” PEX faucet coupler in my box but the rubber seal washer wouldn’t allow it to thread either.
But as opposed to what you have pictured, the male side wall fitting didn’t have a beveled ID to allow the washer to fit into and seal against. I used a sharp box knife to cut the smoothest bevel inside of t fitting.
It took some umpf, but I got the threads started and the assembly tightened together with several turns of threads.
Yeah I may have to do just that.

Quote:
Originally Posted by Isaac-1 View Post
I installed a Dometic 320 about 5 years ago on our coach, and I think the hose I used was an Ace house brand hose from the local hardware store.
I have a normal water supply line, the issue is the inlet fitting has an unthreaded shoulder which is causing me to have very little thread engagement.

Dave
__________________
1995 Fleetwood Southwind
TT_Vert is offline   Reply With Quote
Reply

Tags
dometic, hose, install, toilet, water



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
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
Replacing water inlet pex fitting rvguy02 Entegra Owner's Forum 5 01-25-2023 12:21 PM
Barbed fitting instead of Beadlock AC hose fitting deandec RV Systems & Appliances 3 04-17-2022 07:03 AM
What is this? City water inlet mystery fitting JMonroe Newmar Owner's Forum 18 06-29-2016 11:45 PM
Now you guys have me nervous about the toilets plasma800 Newmar Owner's Forum 45 07-22-2014 07:04 PM
For those who don't put paper down their toilets... Lorna iRV2.com General Discussion 35 04-16-2006 08:02 PM

» Featured Campgrounds

Reviews provided by


All times are GMT -6. The time now is 08:12 PM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2023, vBulletin Solutions, Inc.