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 09-05-2018, 02:03 PM   #1
ltoews
Seasoned Camper
 
Join Date: Oct 2010
Location: Wichita
Posts: 84
M.O.C. #10846
Water coming from grey tank

During this past summer, we had a small trickle of water from the grey tank (not the galley tank) running out from the underbelly. The water only leaked out when the tank was completely full. In over seven years with this Montana, we've occasionally had the tank so full that water started backing up into the shower and never had a leak underneath. I would like to know if the drain pipe from the shower and sink is cemented into the tank or is there a rubber grommet that the drain pipe goes through? A dealerís service department says the drain pipe is just stuck into the tank. Do these tanks have a method to release water if completely full so they do not get too full and rupture? Has anyone ever had an experience like this?
 
__________________
Larry and Sandy
2015 GMC Denali and 2011 Montana 3400RL

ltoews is offline   Reply With Quote
Old 09-05-2018, 02:15 PM   #2
Eagleback
Montana Master
 
Join Date: Sep 2014
Location: Full Timer In Naples, Florida
Posts: 1,049
M.O.C. #15731
Same issue i have right now. I lowered the belly and investigated. I thought it was a leak in the black tank flush, but not there and found after the grey tank got full to the top just Like your describing. it started leaking from on top but not from the drain pipes into the the tank. it has a crack somewhere on top and the only way to get to it is to drop the tank. I am debating if i want to do that as i full time and the grey tank is open about 95% of the time except when i dump the black every week.
__________________
2017, 3500 Ram Big Horn, 4x4, Crew Cab, DRW, Aisin Transmission, 4:10. Curt Q20, 2014 Mountaineer 331 RLT, Sailun's on the rv and truck.
Eagleback is offline   Reply With Quote
Old 09-05-2018, 03:07 PM   #3
richfaa
Montana Master
 
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
Quote:
Originally Posted by ltoews View Post
During this past summer, we had a small trickle of water from the grey tank (not the galley tank) running out from the underbelly. The water only leaked out when the tank was completely full. In over seven years with this Montana, we've occasionally had the tank so full that water started backing up into the shower and never had a leak underneath. I would like to know if the drain pipe from the shower and sink is cemented into the tank or is there a rubber grommet that the drain pipe goes through? A dealerís service department says the drain pipe is just stuck into the tank. Do these tanks have a method to release water if completely full so they do not get too full and rupture? Has anyone ever had an experience like this?
On our 06 3400 and this 13 3402 the tank was glued into the top of the tank and they both failed at that point.Lesson learned do not let the tank, any tank fill up. Try just letting your tank fill half way then see if it leaks. The input drain will pull away from the input causing the leak when full then the weight of the liquid in the tank as it fills will will cause it to over flow at the point were it separated. You might get it 3/4 full and no leaks.
richfaa is offline   Reply With Quote
Old 09-05-2018, 04:56 PM   #4
mazboy
Montana Master
 
Join Date: Aug 2009
Location: Grand Rapids
Posts: 1,896
M.O.C. #9561
If you have someone drop it make sure a replacement tank is available....
mazboy is offline   Reply With Quote
Old 09-05-2018, 05:15 PM   #5
leemedic
Montana Fan
 
leemedic's Avatar
 
Join Date: Apr 2013
Location: Lehigh Acres
Posts: 491
M.O.C. #13354
Quote:
Originally Posted by ltoews View Post
During this past summer, we had a small trickle of water from the grey tank (not the galley tank) running out from the underbelly. The water only leaked out when the tank was completely full. In over seven years with this Montana, we've occasionally had the tank so full that water started backing up into the shower and never had a leak underneath. I would like to know if the drain pipe from the shower and sink is cemented into the tank or is there a rubber grommet that the drain pipe goes through? A dealerís service department says the drain pipe is just stuck into the tank. Do these tanks have a method to release water if completely full so they do not get too full and rupture? Has anyone ever had an experience like this?

Been there, done that. Have rupture 2 grey tanks. If it overfills, it will backup into your RV.
leemedic is offline   Reply With Quote
Old 09-07-2018, 10:08 AM   #6
Chip
Montana Fan
 
Join Date: Oct 2006
Location: Friendship, Maine
Posts: 483
M.O.C. #6338
Our galley tank is that way now. Hope to get it replaced this fall before our extended warranty runs out.
__________________

2012 Big Sky 3400, now an SOB 5th wheel
2007 Montana 3075 previously
2015 GMC 3500 Dually
Chip 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 03:56 PM.


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