Good Sam Club Open Roads Forum: Fifth-Wheels: Rut Roh....Water heater bypass valve kaput?
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 Fifth-Wheels

Open Roads Forum  >  Fifth-Wheels

 > Rut Roh....Water heater bypass valve kaput?

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 
ACZL

UPstate,NY

Senior Member

Joined: 10/09/2001

View Profile



Good Sam RV Club Member

Offline
Posted: 10/12/20 03:21pm Link  |  Quote  |  Print  |  Notify Moderator

So went to winterize this afternoon and wouldn't ya know it, the water heater bypass valve wasn't bypassing cuz antifreeze was going into heater! UGH! Doing some research, it's one of those Thetford 90* red handled valves which don't seem to have a seller reputation. Seems to be a HOT commodity cuz no-one has one. If I strike out tomorrow, may just jerry rig a temp bypass so I can get it done, cuz she's supposed to be going into storage by end of week.

Any suggestions otherwise?


2017 F350 DRW XLT, CC, 4x4, 6.7
2018 Big Country 3560 SS
"The best part of RVing and Snowmobiling is spending time with family and friends"
"Catin' in the Winter"

Rwake901

Central, Illinois

Senior Member

Joined: 11/08/2010

View Profile



Good Sam RV Club Member

Offline
Posted: 10/12/20 03:29pm Link  |  Quote  |  Print  |  Notify Moderator

Can you just use a Pex valve from your local Lowe’s, Home Depot or Menards?

hilke40

Montgomery City Mo.

New Member

Joined: 03/05/2006

View Profile



Good Sam RV Club Member

Offline
Posted: 10/12/20 08:45pm Link  |  Quote  |  Print  |  Notify Moderator

If you have the single handle to by pass , that is probably not your problem. When they went to the single handle bypass method, they put a one way check valve on the top line of water heater. It is letting water back into heater, which it should not be doing. They are around ten bucks and just screw off, after you remove the water line.

schlep1967

Harrisburg, PA

Senior Member

Joined: 12/08/2005

View Profile



Good Sam RV Club Member


Posted: 10/13/20 05:59am Link  |  Quote  |  Print  |  Notify Moderator

hilke40 wrote:

If you have the single handle to by pass , that is probably not your problem. When they went to the single handle bypass method, they put a one way check valve on the top line of water heater. It is letting water back into heater, which it should not be doing. They are around ten bucks and just screw off, after you remove the water line.


What he said.


2008 Dodge Ram 2500 Diesel
2009 Open Range 385RLS
Pull-Rite Super Glide

topjimmy

Washington Coast

Senior Member

Joined: 06/19/2012

View Profile



Good Sam RV Club Member

Offline
Posted: 10/13/20 10:55am Link  |  Quote  |  Print  |  Notify Moderator

Nothing to add here But just gotta say That's funny RUT ROH! I have a Scooby Doo T shirt that says that and my sister has Astro from the Jetsons saying that too and everybody cracks up when they see our shirts [emoticon]

* This post was edited 10/14/20 10:43am by topjimmy *


2015 Montana 3735MK Legacy,2004 2500HD GMC Short Bed, LB7 Duramax/Allison ,Pacbrake,Firestone Airbags Bullydog Tuner

ACZL

UPstate,NY

Senior Member

Joined: 10/09/2001

View Profile



Good Sam RV Club Member

Offline
Posted: 10/14/20 01:15am Link  |  Quote  |  Print  |  Notify Moderator

Hike, sorry for the late reply as I tore apart all the access panels and id remove the cold water line and did not find a valve you mentioned, just a fitting the line connects to which also crews into the tank. Course the dang thing is on back side of heater, so could not get a real good looksie . Sad part is, I'm kinda under the gun to get things done as it's supposed to be going into storage this Fri. At the very least, I did see where Camco markets a product where you disconnect both lines at water heater, attached the bypass line to each water line and......WOHLAA, a temp bypass.

schlep1967

Harrisburg, PA

Senior Member

Joined: 12/08/2005

View Profile



Good Sam RV Club Member


Posted: 10/15/20 05:07am Link  |  Quote  |  Print  |  Notify Moderator

Since you have the lines off an easy way to check for the check valve is to stick a screw driver in the top connection of the water heater. If it hits something solid the check valve is there. If you only have one valve the check valve needs to be there and be operating to winterize.
See this video Replace RV check valve

ACZL

UPstate,NY

Senior Member

Joined: 10/09/2001

View Profile



Good Sam RV Club Member

Offline
Posted: 10/15/20 11:59am Link  |  Quote  |  Print  |  Notify Moderator

schlep1967 wrote:

Since you have the lines off an easy way to check for the check valve is to stick a screw driver in the top connection of the water heater. If it hits something solid the check valve is there. If you only have one valve the check valve needs to be there and be operating to winterize.
See this video Replace RV check valve


Will the check valve be on the hot water line or cold? I removed the cold one only and didn't find one as I mentioned above. Sadly, because I am in a rush situation, I had to do the Camco temp bypass line (attaches to both hot/cold lines to water tank). Was able to get the rig filled w/ antifreeze yet not hot water tank. Did rinse it out good as it did have AF in it. Put everything back together and "mouse proofed" it so it's all set to go tmrw into storage barn. I will however, have to take things back apart in spring to re-do what I did this week. Upon doing so, I will take more time on water tank to check for valves and replace in need be.

schlep1967

Harrisburg, PA

Senior Member

Joined: 12/08/2005

View Profile



Good Sam RV Club Member


Posted: 10/16/20 05:15am Link  |  Quote  |  Print  |  Notify Moderator

ACZL wrote:

schlep1967 wrote:

Since you have the lines off an easy way to check for the check valve is to stick a screw driver in the top connection of the water heater. If it hits something solid the check valve is there. If you only have one valve the check valve needs to be there and be operating to winterize.
See this video Replace RV check valve


Will the check valve be on the hot water line or cold? I removed the cold one only and didn't find one as I mentioned above. Sadly, because I am in a rush situation, I had to do the Camco temp bypass line (attaches to both hot/cold lines to water tank). Was able to get the rig filled w/ antifreeze yet not hot water tank. Did rinse it out good as it did have AF in it. Put everything back together and "mouse proofed" it so it's all set to go tmrw into storage barn. I will however, have to take things back apart in spring to re-do what I did this week. Upon doing so, I will take more time on water tank to check for valves and replace in need be.

It will be on the top/hot out line.
How it works - Your single valve will be on the cold in line. Turning the valve stops the water from going into the bottom of the water heater and forces it into the bypass line. The bypass line connects directly to the top/hot out line from the water heater. The check valve is attached directly to the tank on this line. When it is operating correctly, water can only flow one direction. Out of the water heater.
These check valves commonly fail. I'm on my 3rd one in 10 years. When mine fail the valve comes out of the body and into the water line and blocks all hot water flow. My temp fix while camping is to open up the line and remove that piece. Put the line back together and everything functions again until I get a new check valve. It is possible the prior owner did the same thing and never got back to replacing the check valve.

Reply to Topic  |  Subscribe  |  Print Topic  |  Post New Topic  | 

Open Roads Forum  >  Fifth-Wheels

 > Rut Roh....Water heater bypass valve kaput?
Search:   Advanced Search

Search only in Fifth-Wheels


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

Adjust text size:




© 2020 CWI, Inc. © 2020 Good Sam Enterprises, LLC. All Rights Reserved.