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

Go Back   Montana Owners Club - Keystone Montana 5th Wheel Forum > MOC Technical Forums > Repairs & Service
Click Here to Login

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 12-03-2022, 01:15 PM   #1
Jberry805
New Member
 
Join Date: Oct 2022
Location: simi valley
Posts: 8
M.O.C. #31809
Black tank valve replacement

My black tank valve has a internal leak that is letting fluid bypass it. I just need to replaced the valve but I have some questions

Can I just replaced the valve itself?
Do I have to buy the whole cable assembly?
Any recommendations for a better valve?
 
Jberry805 is offline   Reply With Quote
Old 12-03-2022, 01:26 PM   #2
rohrmann
Montana Master
 
rohrmann's Avatar
 
Join Date: Oct 2012
Location: Box Elder
Posts: 4,231
M.O.C. #12947
You either have damaged seals or debris in the seals not allowing the blade of the valve to completely close. You can either replace the entire valve or just the seals.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
rohrmann is online now   Reply With Quote
Old 12-03-2022, 01:36 PM   #3
Jberry805
New Member
 
Join Date: Oct 2022
Location: simi valley
Posts: 8
M.O.C. #31809
Quote:
Originally Posted by rohrmann View Post
You either have damaged seals or debris in the seals not allowing the blade of the valve to completely close. You can either replace the entire valve or just the seals.

That's what I thought, but I was wondering if I had to buy the whole assembly with the cable or if I can just by the slide valve by itself.
Jberry805 is offline   Reply With Quote
Old 12-03-2022, 01:42 PM   #4
Daryles
Montana Master
 
Daryles's Avatar
 
Join Date: May 2019
Location: Alton
Posts: 2,091
M.O.C. #24086
Have a look on Amazon. They have a bunch of pictures of the replacement valve and a 360⁰ view you can Pivot around.
YouTube has a lot of videos.
Hope this helps.

Valterra-TC372 Flexible Cable Kit with 3" Valve, Mess-Free Waste Valve for RV's, Campers, Trailers, Black https://a.co/d/5hAC898
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
Daryles is offline   Reply With Quote
Old 12-03-2022, 03:10 PM   #5
prndl
Montana Master
 
prndl's Avatar
 
Join Date: Apr 2017
Location: 1000 oaks
Posts: 901
M.O.C. #19630
Replace the valve or just the seals, either way you are going to have to completely disassemble the valve and the extension for the cable to do it. Not fun. When I replaced my black tank valve I had to do both valves (black and gray) as they were joined to a single outlet pipe. After reinstalling and testing with clear water I had a leak and had to do it all over again to get it seated correctly. Carry on.
__________________
2011 2955RL Reese Sidewinder 5th Airborne
2014 RAM 2500 CD Demco Recon Hitch
4X4 Crew Cab/Short Bed
prndl is offline   Reply With Quote
Old 12-03-2022, 05:33 PM   #6
Mikendebbie
Montana Master
 
Mikendebbie's Avatar
 
Join Date: Jan 2018
Location: Austin
Posts: 1,828
M.O.C. #21044
The valve to my front black tank has debris in it (my theory) and it will not close all the way and a little bit of stuff leaks and collects to provide a surprise when removing the hose cap. I need to clean the debris and/or replace the valve. Instead - I bought one of these and installed it on the hose connection. I hook up my hose to this - then pull this valve to drain the black tank. No more surprises.
Attached Thumbnails
Click image for larger version

Name:	97AA4B41-5CC8-46C1-9799-A49B0AD3C9E9.jpg
Views:	33
Size:	161.4 KB
ID:	13779  
__________________
MikenDebbie Aggie 77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
Mikendebbie is offline   Reply With Quote
Old 12-03-2022, 09:11 PM   #7
Lee-CI
Montana Fan
 
Lee-CI's Avatar
 
Join Date: Dec 2021
Location: Northeast TX
Posts: 487
M.O.C. #30262
Quote:
Originally Posted by Mikendebbie View Post
The valve to my front black tank has debris in it (my theory) and it will not close all the way and a little bit of stuff leaks and collects to provide a surprise when removing the hose cap. I need to clean the debris and/or replace the valve. Instead - I bought one of these and installed it on the hose connection. I hook up my hose to this - then pull this valve to drain the black tank. No more surprises.
Whether one has a leaky valve or not, this is one of the best add-ons ever
__________________
Lee, Edith & Lil' Bit the furry feline alarm clock
2022 MHC 331RL, Surge Guard 35550, SumoSprings,TST 770, 200W base solar package
2022 Ram 3500 CC DRW 6.7 CTD, B&W Companion
Lee-CI is offline   Reply With Quote
Old 12-04-2022, 04:38 AM   #8
twindman
Montana Master
 
twindman's Avatar
 
Join Date: Apr 2006
Location: Mesa az
Posts: 2,604
M.O.C. #5651
In addition to this exterior valve, I installed a clear 6 or 8 inch extension that twists on. Since this seems to rotate and or come loose, I put a small screw thru it to sort of permanently keep it attached. So I always shut of this valve when done draining and I can also tell when the black tank water is clear and clean.
__________________

Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
twindman is offline   Reply With Quote
Old 12-04-2022, 07:02 AM   #9
jimcol
Montana Master
 
jimcol's Avatar
 
Join Date: Dec 2007
Location: Kansas City, Missouri
Posts: 2,572
M.O.C. #7992
Send a message via AIM to jimcol Send a message via MSN to jimcol
Are you sure it is leaking? When I first got mine, I had the same thought. It was just residual water in the drain piping that found its' way to the discharge cap on the ride home. Using something like this is where I'd start.
https://www.campingworld.com/twist-o...lve-27868.html
then a clear elbow like this could help you determine how big the problem is.
https://www.campingworld.com/3quot%3...ter-16835.html
__________________
2006 3000RK
2009 Ram 2500
jimcol is offline   Reply With Quote
Old 12-04-2022, 10:42 AM   #10
Jberry805
New Member
 
Join Date: Oct 2022
Location: simi valley
Posts: 8
M.O.C. #31809
https://www.etrailer.com/RV-Waste-Va.../T1003PBC.html

This is what I went with. I believe this is it, just the valve. Hopefully the cable can reattach to it.
Jberry805 is offline   Reply With Quote
Old 12-04-2022, 12:58 PM   #11
jcurtis934
Montana Master
 
Join Date: Sep 2013
Location: Pensacola (mail forward service)
Posts: 3,198
M.O.C. #13740
And you will find the job to be easier if you cut the pipe on the exit side of the valve...leaving enough pipe on the valve for a rubber no hub coupling to reconnect the piping back together.
__________________
2012 F350 6.7 L dually, 2013 3800RE with 6 pt leveling, Sumitomo 17.5" load range h tires, Samsung 18 cu ft residential fridge, 8k Morryde I.S. with disc brakes. Full timing since 2012.
jcurtis934 is offline   Reply With Quote
Old 12-04-2022, 02:15 PM   #12
Camp CA
Montana Master
 
Join Date: Feb 2020
Location: Bencia
Posts: 507
M.O.C. #25828
Replaced the valve and cable assembly since it would either stick closed or open AND installed an end of pipe valve as a safeguard from a leaky valve.
__________________
2020 Montana 3780RL fifth wheel
2016 F-350 6.7L Diesel Crew Cab Long Bed DRW
Camp CA is offline   Reply With Quote
Old 12-07-2022, 02:22 PM   #13
Scootsk
Montana Fan
 
Join Date: Apr 2019
Location: Long Isalnd
Posts: 110
M.O.C. #23929
Quote:
Originally Posted by Mikendebbie View Post
The valve to my front black tank has debris in it (my theory) and it will not close all the way and a little bit of stuff leaks and collects to provide a surprise when removing the hose cap. I need to clean the debris and/or replace the valve. Instead - I bought one of these and installed it on the hose connection. I hook up my hose to this - then pull this valve to drain the black tank. No more surprises.
I second this. It seems to be an issue with a lot of RVs. I put in this valve and I no longer have to worry about that mess.
Scootsk is offline   Reply With Quote
Old 12-07-2022, 03:09 PM   #14
Mikendebbie
Montana Master
 
Mikendebbie's Avatar
 
Join Date: Jan 2018
Location: Austin
Posts: 1,828
M.O.C. #21044
Here is a pic of my stuff...
Attached Thumbnails
Click image for larger version

Name:	2022-12-07_14-59-17.jpg
Views:	19
Size:	154.2 KB
ID:	13797  
__________________
MikenDebbie Aggie 77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
Mikendebbie is offline   Reply With Quote
Old 12-08-2022, 10:35 AM   #15
Buster and Sandra
Established Member
 
Join Date: Jun 2017
Location: Burleson
Posts: 24
M.O.C. #19942
It's really not a hard job to replace these valves. I had to replace one and clean another, but, the best tip I found on this forum was to lower the front of my rig as low as possble before beginning the work. This allows any residual fluids to go to the back of the tank away from the valve. This made for an almost mess free change.
The first time I was going to change the black water valve I bought a valterra valve, but, when I got the old valve out I found it was just full of toilet paper in the groove the valve slides through. I cleaned it out really well and re-installed the valve. Worked perfectly until we traded in a few years later and I still have a spare valve
__________________
Buster and Sandra Foster
Burleson, Texas
2022 Montana 3121RL Legacy
2016 Ford F250 King Ranch CC FX4 with 16k Curt hitch
Buster and Sandra is offline   Reply With Quote
Old 12-08-2022, 11:23 AM   #16
432bartman
Montana Master
 
432bartman's Avatar
 
Join Date: May 2020
Location: UPLAND
Posts: 1,082
M.O.C. #26190
However it gets repaired, it's still a S@$tty job
__________________
2019 Keystone Montana 3560RL, 2020 Chevy 2500 HD, Firestone airbags, Air Lift wireless compressor, Curt gooseneck, 20K Reese Goosebox, TST-507, USMC combat vet & retired LEO. Robert, Anika, Breanna, Dylan & our Great Pyrenees Layla
432bartman is offline   Reply With Quote
Old 12-08-2022, 12:54 PM   #17
oeeman
Established Member
 
Join Date: Sep 2014
Location: Wenatchee
Posts: 38
M.O.C. #14662
A contractor once taught me a trick that might work. shut the valve and then fill the tank as full as possible with clean water. Then open the valve just slightly - might have to play with the amount. you want enough water to come through but not too much. with the valve being partially open the water flowing through generates turbulence in the area the gate seals. This can sometimes loosen the offending material and flush it out. This only works if it is indeed is material preventing the gate from closing. Obviously doesn't' work for a damaged valve or seal.
oeeman is offline   Reply With Quote
Old 12-19-2022, 09:43 AM   #18
Jberry805
New Member
 
Join Date: Oct 2022
Location: simi valley
Posts: 8
M.O.C. #31809
Just an update. The valve I posted above is the correct one, with just a slight modification to the cable connection it will work

Thankfully I took apart the valve and found what appreaed to be some cardboard stuck in the valve. Removed the debris and reassembled. No more leaks keeping the valve for later
Jberry805 is offline   Reply With Quote
Reply

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
Forum Jump

Powered by vBadvanced CMPS v3.2.3
Disclaimer:

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


All times are GMT -6. The time now is 11:58 PM.


Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2023, vBulletin Solutions, Inc.