|
09-18-2022, 01:57 PM
|
#1
|
Seasoned Camper
Join Date: Mar 2019
Location: Scottsdale
Posts: 70
M.O.C. #23577
|
Grey water valve
My grey water valve for the shower/bathroom “seems”to open and only time water comes out is when tank is 2/3’s full. When we run the shower with the valve open water trickles out. It’s like the valve is only opening part way. Can anyone tell me where the actual valve is located so I don’t have to tear the whole thing apart to find it? I have a Keystone Montana 3120
|
|
|
09-18-2022, 04:11 PM
|
#2
|
Montana Master
Join Date: Jan 2018
Location: Austin
Posts: 2,419
M.O.C. #21044
|
I have never tried to access my tank valves, but my understanding is that you can't access the valves without removing the coroplast bottom...maybe not the whole bottom but it might be possible to create an "access hatch" in the coroplast to get to the valves. Hopefully someone here can give you better advice. The sketches below (side view and plan view) illustrates approximately where the tanks and the valves are located. I developed this sketch from watching the various "Montana factory tour" videos on youtube.
__________________
MikenDebbie Aggie ‘77 in the sticks near Austin TX
2019 Chevy 3500 High Country DRW
2018 Montana 3921FB
Aussie Gus + Texas Heeler Jimmy
|
|
|
09-18-2022, 07:13 PM
|
#3
|
Montana Master
Join Date: Aug 2004
Location: Livermore
Posts: 5,146
M.O.C. #1920
|
We have replaced ours with Valterra valves. As mentioned, you need to drop the under belly (coroplast) under the basement. They are blade valves that are activated by pulling the cable handle ( as you already know), which is connected to the blade valve at the tank. Perhaps your valve is not properly adjusted or moving?
__________________
Ron and Terrie Ames - MOC #1920/KF0NTA
2021Montana 3230CK Super Solar Legacy Package
2021 Ram 3500 Laramie Longhorn, BIM Charging
4x4, SRW, LB, Crew Cab, Pullrite 3900 Hitch
|
|
|
09-18-2022, 08:58 PM
|
#4
|
Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,695
M.O.C. #24086
|
In Mike's drawing I believe the grey tank is left and the black tank is right. Remove your basement wall and follow the sewer pipe down to confirm.
And as mentioned above you will need to pull down the section of coroplast under the basement.
Put a pry bar under the washers and a 1/4" socket on a drill. Run the drill in reverse and pry down to get the nails out.
When putting it back up re use the washers and use 1" #12 self tapping bolts/screws. You have to push up really hard but the screws will go through the nail holes.
Here's a good video of lubricating valves.
Valve lubrication making lube holes for silicon grease
__________________
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
|
|
|
09-18-2022, 09:21 PM
|
#5
|
Montana Fan
Join Date: Jan 2021
Location: Coloma, Wisconsin
Posts: 202
M.O.C. #28036
|
Wish I had better pics for you but this is 2019 3121RL. with the front chloroplast dropped exposing the valves and the mess of wires from factory. Gray tank is to the left (opposite door side) black is to the right ( door side)
|
|
|
09-18-2022, 10:43 PM
|
#6
|
Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,366
M.O.C. #4831
|
The location of the tanks depends on your floor plan. The black and grey can be on either the DS or ODS. Look for the toilet down pipe in the passthru area to give you a clue. My 3700RL has the black tank on the ODS. Apparently the 3120/3121 series have the black on the DS.
You only have to drop a couple of feet of coroplast to get to the black and shower tanks. The valves you are looking for are near the rear of the dropped frame section. Alternatively, you can cut a flap with the opening to the rear to access the valves. You probably want to drop an edge of the coroplast to figure out where to cut. By the time you have done that, it is just as much work to just drop the back of the coroplast.
__________________
Carl (n Susan)
There is more to life than fuel mileage.
2012 Montana 3700RL Big Sky Package towed by a 2015 Ford F350 6.7L PSD 4WD CC LWB
|
|
|
09-19-2022, 12:32 AM
|
#7
|
Montana Master
Join Date: Oct 2012
Location: Box Elder
Posts: 4,701
M.O.C. #12947
|
This is a photo of our black and grey tank valves.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
|
|
|
09-19-2022, 09:57 AM
|
#8
|
Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 2,953
M.O.C. #5651
|
Looking at the pics it is obvious the tanks can't fully drain. The outlet is an inch above the bottom of the tank. What a poor design!
__________________
Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
|
|
|
09-19-2022, 12:02 PM
|
#9
|
Montana Fan
Join Date: Jan 2021
Location: Coloma, Wisconsin
Posts: 202
M.O.C. #28036
|
Agreed, even when you raise the front legs up it is not a complete dump without excess flushing and time.
__________________
Chuck
2019 3121RL 35 ft., 2020 3500 Dodge Ram SRW, Cummins 6.7 HO, Air Bags - Air Lift BT Wireless Compressor, Coloma, Wisconsin
|
|
|
09-20-2022, 08:34 AM
|
#10
|
Seasoned Camper
Join Date: Mar 2019
Location: Scottsdale
Posts: 70
M.O.C. #23577
|
Thanks to everyone for the great pictures it was a big help in locating my tank. Was very easy to change the valve out as well. Thanks again
|
|
|
09-20-2022, 08:37 AM
|
#11
|
Montana Master
Join Date: Aug 2004
Location: Livermore
Posts: 5,146
M.O.C. #1920
|
Hope you replaced with Valterra solid wire valves.
__________________
Ron and Terrie Ames - MOC #1920/KF0NTA
2021Montana 3230CK Super Solar Legacy Package
2021 Ram 3500 Laramie Longhorn, BIM Charging
4x4, SRW, LB, Crew Cab, Pullrite 3900 Hitch
|
|
|
09-20-2022, 08:41 AM
|
#12
|
Seasoned Camper
Join Date: Mar 2019
Location: Scottsdale
Posts: 70
M.O.C. #23577
|
I did, works very smoothly
|
|
|
09-21-2022, 01:37 PM
|
#13
|
Seasoned Camper
Join Date: Mar 2019
Location: Scottsdale
Posts: 70
M.O.C. #23577
|
We put the Dawn dish soap in the grey water tank, but wife is convinced it would work better if we were out driving the RV around causing the soapy water to slosh around. But according to an article I read all you have to do is leave it sit overnight, but may have to try it a couple of times. ????
|
|
|
09-26-2022, 02:28 PM
|
#14
|
Seasoned Camper
Join Date: Mar 2019
Location: Scottsdale
Posts: 70
M.O.C. #23577
|
Put the Dawn Dish soap in overnight, drained the next morning now showing 1/3 full. I think the 1/3 sensor is still dirty. Dumped more water and soap in left if slosh around while driving to next campground. Got to to the next campground drained it, still showing 1/3 full. I noticed the slope of the tank when I was changing the valve so I know there’s no water in the tank and it’s draining completely. Probably need a new sensor system.
|
|
|
|
Posting Rules
|
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts
HTML code is Off
|
|
|
|
» Recent Threads |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|