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

Reply
 
Thread Tools Search this Thread Display Modes
 
Old 02-04-2024, 06:19 PM   #1
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
Semi-permanent sewer lines

Greetings,
I have set up a 2024 381 TB for a permanent resident. The unit will likely never be moved so I have installed 3 inch white pvc sewer/ drain (DWV) piping into the septic. The only issue is the connection of this pipe to the trailer sewer outlets. I have "hijacked" some couplings from the dealer (cheap) sewer lines and have attempted to "make them fit" the 3" DWV pipe, but - as you can imagine - they are a little leaky. Has anyone had similar experience with this who could share what they did to connect a more permanent sewer drain line?
Thanks,
Max
 
__________________
Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
"Prairie Schooner"
MaxwellD is offline   Reply With Quote
Old 02-04-2024, 07:35 PM   #2
rohrmann
Montana Master
 
rohrmann's Avatar
 
Join Date: Oct 2012
Location: Box Elder
Posts: 4,666
M.O.C. #12947
You might be better off installing a short hose between the trailer and the hard sewer line to allow for the slight movement the trailer will experience from wind and other movement. This will also make it easier to get a tight seal at the sewer outlet fitting.
__________________
Bob & Becky
2012 3402RL
2012 Chevy 2500HD D/A CC 4WD
rohrmann is offline   Reply With Quote
Old 02-04-2024, 08:00 PM   #3
firestation12
Montana Fan
 
Join Date: Jul 2019
Location: Mesa
Posts: 275
M.O.C. #24588
There is a slight difference in diameter between 3” pvc and 3” pvc sewer pipe. A plumbing supply or possibly Amazon will have a thin sleeve that that fills the gap when mating the two different diameter pvc pipes. The sewer pvc has a slightly larger inside diameter because it has a thinner wall thickness. This may be the reason your fittings are leaking.
firestation12 is offline   Reply With Quote
Old 02-04-2024, 08:56 PM   #4
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
Quote:
Originally Posted by firestation12 View Post
There is a slight difference in diameter between 3Ē pvc and 3Ē pvc sewer pipe. A plumbing supply or possibly Amazon will have a thin sleeve that that fills the gap when mating the two different diameter pvc pipes. The sewer pvc has a slightly larger inside diameter because it has a thinner wall thickness. This may be the reason your fittings are leaking.
Thank you - I will check into that.
__________________
Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
"Prairie Schooner"
MaxwellD is offline   Reply With Quote
Old 02-04-2024, 08:59 PM   #5
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
Quote:
Originally Posted by rohrmann View Post
You might be better off installing a short hose between the trailer and the hard sewer line to allow for the slight movement the trailer will experience from wind and other movement. This will also make it easier to get a tight seal at the sewer outlet fitting.
Good idea. I just picked up a 3" rubber coupling from lowes with clamp fittings on either end (about 10" long). I will see how this works.
Thanks
__________________
Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
"Prairie Schooner"
MaxwellD is offline   Reply With Quote
Old 02-05-2024, 08:57 AM   #6
fatcatzzz
Montana Fan
 
Join Date: Jun 2014
Location: Kamiah
Posts: 331
M.O.C. #14438
Quote:
Originally Posted by rohrmann View Post
You might be better off installing a short hose between the trailer and the hard sewer line to allow for the slight movement the trailer will experience from wind and other movement. This will also make it easier to get a tight seal at the sewer outlet fitting.
Exactly what I do. Short 2 ft hose, bought on Amazon'
__________________
Ron&Sue
2017 Montana 3720RL Legacy
14' Ram 3500 DRW
fatcatzzz is offline   Reply With Quote
Old 02-06-2024, 08:19 AM   #7
Carv
Established Member
 
Carv's Avatar
 
Join Date: Sep 2018
Location: Joppa
Posts: 22
M.O.C. #22627
Search Amazon for rv sewer adapter to 3 inch pvc. Many options that will not leak.
__________________
2019 3120RL
2018 F350 DRW
Carv is offline   Reply With Quote
Old 02-06-2024, 08:58 AM   #8
Gonefishing
Montana Fan
 
Join Date: Sep 2023
Location: Jacksonville
Posts: 147
M.O.C. #33285
Lowes sells a rubber coupling 3 inch has a clamp on each end. That is what I used. Works great no leaks at all. One end clamps to tank outlet other end clamps to the 3 inch pvc
__________________
Bob, Kay and our 3 pups Lily, Willis and Gizmo
Jacksonville, Nc
Retired LEO of 35 years enjoying life camping n fishing
2021 Montana 3761fl pulled with a 2022 F350 King Ranch
Gonefishing is offline   Reply With Quote
Old 02-06-2024, 12:46 PM   #9
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
Quote:
Originally Posted by Gonefishing View Post
Lowes sells a rubber coupling 3 inch has a clamp on each end. That is what I used. Works great no leaks at all. One end clamps to tank outlet other end clamps to the 3 inch pvc
Thats exactly what I bought. I will try it on tomorrow thank you
MaxwellD is offline   Reply With Quote
Old 02-06-2024, 12:49 PM   #10
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
I saw those. I couldnt figure out how they would work - looked like I would use only half of it? ( to connect to sewer outlet). I will re- visit those if my rubber coupling is not satisfactory. Thanks!
__________________
Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
"Prairie Schooner"
MaxwellD is offline   Reply With Quote
Old 02-06-2024, 06:46 PM   #11
Gonefishing
Montana Fan
 
Join Date: Sep 2023
Location: Jacksonville
Posts: 147
M.O.C. #33285
It will work. That’s how I did mine. Connected to gate valve with one end and a section of 3 inch pvc to the other end. Added an elbow to the end and placed into the dump tank
__________________
Bob, Kay and our 3 pups Lily, Willis and Gizmo
Jacksonville, Nc
Retired LEO of 35 years enjoying life camping n fishing
2021 Montana 3761fl pulled with a 2022 F350 King Ranch
Gonefishing is offline   Reply With Quote
Old 02-07-2024, 02:13 PM   #12
DutchmenSport
Montana Master
 
DutchmenSport's Avatar
 
Join Date: Oct 2018
Location: Anderson
Posts: 2,513
M.O.C. #22835
Santa Clause, Indiana, .... Camp Roudolph, which is the campground next to Holiday World and Splashin' Safari. They have permanent installed campers one can rent out (like cabins). Here's a photo of how they installed a permanent sewer line. Sorry, I do not have a closer photo of the actual connection.

But, it looks like they simply cut the end of the pipe on the camper and connected it to the white PVC pipe. You can connect them with a "boot" too:



Connect the 2 with something like this:

Click here.
__________________
Who you are right now is a sum total off all you use to be.
2019 Montana High Country 375FL
2014 Chevy Silverado Duramax, 6.6L Dually
DutchmenSport is offline   Reply With Quote
Old 02-11-2024, 02:07 PM   #13
laverdur
Montana Fan
 
Join Date: Nov 2011
Location: Albany
Posts: 404
M.O.C. #11972
I would use a flexible coupler.
__________________
2012 3150RL. G614 tires. Hardwired surge protector. Level-Up Hydraulic leveling.
2013 F-350 Lariat 6.7 PSD SRW SC LB 4X4 OEM hitch, air self-leveling on rear. 57-gallon replacement fuel tank. DieselSite water separator/fuel filter.
laverdur is offline   Reply With Quote
Old 02-11-2024, 04:29 PM   #14
beeje
Montana Master
 
beeje's Avatar
 
Join Date: Oct 2015
Location: westminster md
Posts: 2,311
M.O.C. #17894
The black abs pipe used in RVs should be the same size as PVC pipe you would use in your house. They should interchange and glue together with a all-purpose glue.
Like stated though I would use a fernco fitting as a flexible connection.
I would think if you buy an RV rigid extension piece that will connect to your trailer you can cut one end off in fernco from that to the white PVC. But you have to use regular PVC not the thin wall white stuff that you would use for like downspouts
beeje is offline   Reply With Quote
Old 02-11-2024, 08:02 PM   #15
Bkurt
Established Member
 
Join Date: Mar 2022
Location: San Tan Valley
Posts: 14
M.O.C. #30606
My solution

After replacing my Rhino flex hose 3 years in a row do to sun damage. I finally put a new Rhino flex hose in a 4inch PVC pipe. Looks good and havn't replaced yet. Been 5 years
Bkurt is offline   Reply With Quote
Old 02-12-2024, 11:58 AM   #16
DebNJim B
Montana Master
 
DebNJim B's Avatar
 
Join Date: Jan 2018
Location: Northville, NY
Posts: 802
M.O.C. #21158
Also, unless you are eliminating the holding tank, the owner still needs to use the dump valve or he'll end up with the poo-pyramid.
__________________
Jim B
2017 Lariat F-350 FX4, CC, SB, 6.7 PSD 4WD
2018 MONTY 3731FL, at our private winter site in GA

DebNJim B is offline   Reply With Quote
Old 02-12-2024, 07:04 PM   #17
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
Quote:
Originally Posted by Bkurt View Post
After replacing my Rhino flex hose 3 years in a row do to sun damage. I finally put a new Rhino flex hose in a 4inch PVC pipe. Looks good and havn't replaced yet. Been 5 years

I like that idea. I assume you used a 4i inch pvc or dwv 4 inch to accomdodate the Rhino hose ?
__________________
Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
"Prairie Schooner"
MaxwellD is offline   Reply With Quote
Old 02-14-2024, 12:21 PM   #18
pitman44
Seasoned Camper
 
Join Date: Dec 2019
Location: Dryden
Posts: 88
M.O.C. #25471
Quote:
Originally Posted by MaxwellD View Post
Greetings,
I have set up a 2024 381 TB for a permanent resident. The unit will likely never be moved so I have installed 3 inch white pvc sewer/ drain (DWV) piping into the septic. The only issue is the connection of this pipe to the trailer sewer outlets. I have "hijacked" some couplings from the dealer (cheap) sewer lines and have attempted to "make them fit" the 3" DWV pipe, but - as you can imagine - they are a little leaky. Has anyone had similar experience with this who could share what they did to connect a more permanent sewer drain line?
Thanks,
Max
This is what I used in a similar situation. I cut the threads off and used a 3" Fernco adapter to make a leakproof connection between this fitting and the 3" PVC. Easy to take back apart if the need arrises. https://www.amazon.com/gp/product/B0...e?ie=UTF8&th=1
pitman44 is offline   Reply With Quote
Old 02-15-2024, 06:49 PM   #19
ncrobertelee
New Member
 
ncrobertelee's Avatar
 
Join Date: Dec 2020
Location: Selma
Posts: 1
M.O.C. #27650
MaxwellD

I have mine set up the same way and used "Furney Couplings" At Lowes or Home Depot ...Plumbng Dept. Black rubber connectors with band straps
I soaked mine in really hot water for about 15 minutes to make more plyable and some Vaseline rubbed inside to slide over the knuckles that connect the traditional sewer hose
ncrobertelee is offline   Reply With Quote
Old 02-16-2024, 06:49 AM   #20
MaxwellD
Montana Fan
 
Join Date: Oct 2017
Location: Tyler
Posts: 186
M.O.C. #20704
Quote:
Originally Posted by ncrobertelee View Post
I have mine set up the same way and used "Furney Couplings" At Lowes or Home Depot ...Plumbng Dept. Black rubber connectors with band straps
I soaked mine in really hot water for about 15 minutes to make more plyable and some Vaseline rubbed inside to slide over the knuckles that connect the traditional sewer hose
I should have tried that. I gave up trying to get the coupling over those knuckles (and after scraping my knuckles trying to do so) I have it "rigged " for now. I appreciate the feedback
Max
__________________
Maxwell and Beverly Dow
2018 3730FL 2020 Ram 3500 Dually SWB
"Prairie Schooner"
MaxwellD 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

» Featured Campgrounds

Reviews provided by

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 09:50 PM.


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