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 > Montana Problems, Problem Solving & Technical Help
Click Here to Login

Thread Tools Search this Thread Display Modes
Old 04-03-2019, 09:42 PM   #1
New Member
Join Date: Mar 2019
Location: Elma
Posts: 1
M.O.C. #23617
Help me identify my Leak! I'm a newby.

I have an 2008 3295rk (I have had it about 3 weeks) there is a leak I think from the black tank...! No smell..but dirty blackish water.

Haven't pulled the underbelly off yet. But there is a smaller plumbing pipe than the largest that then T's into the larger 3" drain pipes. If this is to the black tank, why the smaller pipe for black and the larger for the grey? Can someone identify what this pipe is? Does anyone know if black tank drains from the bottom of the tank or on the side?

Would this be a vent pipe to roof?
And my cap is leaking?

I'm stumped.
Attached Thumbnails
Click image for larger version

Name:	20190402_103115.jpg
Views:	57
Size:	199.7 KB
ID:	3414  
Sissy is offline   Reply With Quote
Old 04-04-2019, 07:21 AM   #2
Montana Master
Join Date: Oct 2006
Location: McKinney
Posts: 7,166
M.O.C. #6433
You have two grey tanks. Typically the black tank and the main grey tank drain through the larger black pipe joining somewhere in the belly of the beast and the smaller black pipe is the galley tank.

Can't help with the leak. There have been many different causes of those.
Bill & Patricia
Riley, our Golden
2007 3075RL (recently sold, currently without)
BB_TX is offline   Reply With Quote
Old 04-04-2019, 09:05 AM   #3
Montana Fan
Join Date: Jun 2014
Location: Kamiah
Posts: 332
M.O.C. #14438
Looking at your floor plan looks like that pipe is from the washer hookups. Not uncommon
for the washer drain to go direct into main drain (3"). I see that the toilet is as so on the other side of the wall and the black tank is there. Black tank is most likely the problem and just leaking through the opening for the smaller drain. Unfortunately only real way to tell is drop the chloroplast, I had a leak on my 07' Montana that ran about 6 feet on top of the chloroplast before it came out. Good luck.
2017 Montana 3720RL Legacy
14' Ram 3500 DRW
fatcatzzz is offline   Reply With Quote

black tank, leak, underbelly valve

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 03:06 AM.

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