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 > GENERAL DISCUSSIONS > General Discussions about our Montanas
Click Here to Login

Thread Tools Search this Thread Display Modes
Old 11-27-2023, 11:57 AM   #1
New Member
Join Date: Oct 2023
Location: Travelers Rest
Posts: 6
M.O.C. #33434
Job Shack Portable 300 Gallon Waste Tank

We're living on our property with our 2017 Keystone Montana Legacy 3920FB. Preparing to move into it full time in December. I'm needing information on how to plumb the Job Shack 300 gallon waste tank. I've purchased the fitting coming off the camper waste out gate. I'm needing to know how or what to use for fittings from the pvc piping into the tank. Any thoughts would be helpful. I've seen where you can use a rubberized connecting hose instead of permantely gluing the pvc together so you can take a part and reuse. Our plan is to move it in 2 years to a beach island in the south. email me with direct help. Thank you.
ILOVEFISHINGEDISTO is offline   Reply With Quote
Old 11-27-2023, 12:18 PM   #2
Carl n Susan
Site Team
Carl n Susan's Avatar
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,354
M.O.C. #4831
I think you are referring to a "No Hub" flexible coupler for your piping. They come in various diameters to fit what ever you are trying to join. No gluing and you can disconnect and reconnect easily.

Here is a sample of No Hub couplers from Amazon to give you an idea.
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

Carl n Susan is offline   Reply With Quote
Old 11-27-2023, 01:17 PM   #3
Montana Master
Mikendebbie's Avatar
Join Date: Jan 2018
Location: Austin
Posts: 2,407
M.O.C. #21044
I am not sure what built-in fittings/nipples those tanks come with.
The tank in the screen shot below has 3" "ports" (or nipples I think) to allow you to slip rubber couplings like Carl showed over them and connect PVC pipe. You will need something like the first screen shot below hooked to your RV sewer outlet to connect the PVC pipe to the RV.

If you will be pulling the RV from time to time - the setup in the 2nd and 3rd screen shots might be better. You could un-hook from the tank and hit the road.

My question for either set-up is about the access hatch/port for the septic pump guy to come suck out the tank is located. Also - what size does it need to be to fit the sucker hose?
Attached Thumbnails
Click image for larger version

Name:	2023-11-27_14-11-54.png
Views:	17
Size:	724.9 KB
ID:	16016   Click image for larger version

Name:	2023-11-27_14-07-41.png
Views:	13
Size:	409.9 KB
ID:	16017   Click image for larger version

Name:	2023-11-27_13-54-59.png
Views:	15
Size:	165.5 KB
ID:	16018  
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 11-27-2023, 02:05 PM   #4
Montana Master
Daryles's Avatar
Join Date: May 2019
Location: Alton
Posts: 2,673
M.O.C. #24086
Is that tank going to need a vent pipe/valve for air to get out as you are dumping your RV tanks into it?
Maybe for pumping out you could use the inlet from the RV side?
You would need to check with the pump out company what kind of connections are best and that they have.
Maybe a tilt platform to tilt it up when they are pumping it out?
Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
Daryles is online now   Reply With Quote
Old 11-28-2023, 09:57 AM   #5
Montana Fan
Join Date: Jun 2014
Location: Kamiah
Posts: 331
M.O.C. #14438
What Mikendebbie said. Only difference for me is I use 3" ABS to run from tank to rig. I then use short 2' sewer hose to connect from rig to ABS.
2017 Montana 3720RL Legacy
14' Ram 3500 DRW
fatcatzzz is offline   Reply With Quote

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

» Featured Campgrounds

Reviews provided by

Powered by vBadvanced CMPS v3.2.3

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 05:36 PM.

Powered by vBulletin® Version 3.8.9
Copyright ©2000 - 2024, vBulletin Solutions, Inc.