Good Sam Club Open Roads Forum: Truck Campers: toilet water valve
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 Truck Campers

Open Roads Forum  >  Truck Campers

 > toilet water valve

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
Page of 2  
Next
Gary3

Windsor, ON

Senior Member

Joined: 12/26/2006

View Profile


Offline
Posted: 05/03/21 03:43am Link  |  Quote  |  Print  |  Notify Moderator

After flushing the pink stuff out of the water lines I noticed a leak coming from the top of the water valve only when I flushed the toilet. There is a hole right on top of the valve looks like its supposed to be there. Anyway I got a short bolt and pipe sealer and screwed it in and now no leak anyone have an idea what that hole was put there for.


Gary  Lance  1191 solar Gen.

ticki2

NH

Senior Member

Joined: 07/09/2008

View Profile



Posted: 05/03/21 04:06am Link  |  Quote  |  Print  |  Notify Moderator

It sounds like a place a spray hose option attached . Might have had a block off that finally leaked . Does it have a spray hose now ? Just a guess.


'68 Avion C-11
'02 GMC DRW D/A flatbed

Gary3

Windsor, ON

Senior Member

Joined: 12/26/2006

View Profile


Offline
Posted: 05/03/21 05:35am Link  |  Quote  |  Print  |  Notify Moderator

No its a thedford toilet I made a 2in hole in the plastic above it so I could see in there and its just a 3/8 hole with no threads if you push down with a screwdriver its spring loaded what ever it's for.

phil-t

Ogdensburg, NY

Full Member

Joined: 09/05/2017

View Profile



Good Sam RV Club Member

Offline
Posted: 05/03/21 06:26am Link  |  Quote  |  Print  |  Notify Moderator

Vacuum breaker valve? Keeps the water line from sucking water from the toilet (in a bad event) into the water lines.


2010 Winnebago Vista 32k on a 2009 Ford F53 22k chassis

Gary3

Windsor, ON

Senior Member

Joined: 12/26/2006

View Profile


Offline
Posted: 05/03/21 07:22am Link  |  Quote  |  Print  |  Notify Moderator

Well it can,t suck anymore its plugged for good.

Old-Biscuit

Verde Valley

Senior Member

Joined: 06/20/2009

View Profile



Posted: 05/03/21 12:04pm Link  |  Quote  |  Print  |  Notify Moderator

Water goes to toilet water supply valve then goes up to the Vacuum Breaker then down into toilet when you flush
Hole in top of vacuum breaker closes off from water pressure

Then after flushing and toilet valve closes the vacuum breaker hole opens and allows water to drain down into bowl...that is where the water in bowl comes from

Water in bowl is a vapor barrier......stops black tank odors from coming backup thru toilet bowl seal
Water in bowl keeps bowl seal from drying out...leaking

Vacuum breaker is there by Design....replace it.


Is it time for your medication or mine?


2007 DODGE 3500 QC SRW 5.9L CTD In-Bed 'quiet gen'
2007 HitchHiker II 32.5 UKTG 2000W Xantex Inverter
US NAVY------USS Decatur DDG31

stevenal

Newport, OR, USA

Senior Member

Joined: 03/16/2004

View Profile


Offline
Posted: 05/03/21 01:38pm Link  |  Quote  |  Print  |  Notify Moderator

Which Thetford model? I just noticed my Style Plus is leaking from the supply side flush valve.


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

opnspaces

San Diego Ca

Senior Member

Joined: 12/22/2004

View Profile


Offline
Posted: 05/03/21 06:53pm Link  |  Quote  |  Print  |  Notify Moderator

Gary3 wrote:

Well it can,t suck anymore its plugged for good.


Actually now that it's plugged it definitely can suck toilet water back into your fresh water system.

Yes it would have to be an unlikely event of the bowl full of water so the fill hose in the bowl is covered. Then at the same time the fresh system has to lose pressure so that water starts flowing back toward the tank. If that happens you do not have a vacuum breaker to prevent siphoning water from the toilet bowl back into your fresh system.

Yes unlikely, but safety things are there for a reason. The manufacturer doesn't just put anti-siphon valves on the RV to pad their wallets.


2001 Suburban 4x4. 6.0L, 4.10 3/4 ton
2005 Jayco Jay Flight 27BH
1986 Coleman Columbia Popup.

Gary3

Windsor, ON

Senior Member

Joined: 12/26/2006

View Profile


Offline
Posted: 05/04/21 04:02am Link  |  Quote  |  Print  |  Notify Moderator

I guess that shutoff I installed will come in handy,just can't figure out how water can be sucked up from the bottom of the toilet. New valve will have to wait can't even go to an rv store and match it up.

stevenal

Newport, OR, USA

Senior Member

Joined: 03/16/2004

View Profile


Offline
Posted: 05/04/21 11:42am Link  |  Quote  |  Print  |  Notify Moderator

The explanations provided by phil-t/opnspaces and Old-Biscuit are contrary. Can someone else chime in on the purpose/function of this vacuum breaker?

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

Open Roads Forum  >  Truck Campers

 > toilet water valve
Search:   Advanced Search

Search only in Truck Campers


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.