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12-08-2014, 05:00 AM
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#1
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Montana Fan
Join Date: Jun 2003
Location: Kooskia
Posts: 116
M.O.C. #380
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Black Tank Access
I think I have joined the "Black Tank Leak Club". Sewer smell occurs on about the 5th day of use - I normally dump every 6th day and have never had this before on this one or any of the past 3 Montanas. My question is, how do I access the tank to look - can I get in from the basement through the vertical wall panel on the passenger side?
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12-08-2014, 07:11 AM
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#2
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Montana Master
Join Date: Feb 2007
Location: Winfield
Posts: 7,327
M.O.C. #6846
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Usually the access is obtained by dropping the black belly material beneath the rig.
Bingo
__________________
Bingo and Cathy - Our adventures begin in the hills of WV. We are blessed by our 2014 3850FL Big Sky (previous 2011 3750FL and 2007 3400RL) that we pull with a 2007 Chevy Silverado Classic DRW CC dually.
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12-08-2014, 08:08 AM
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#3
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Montana Fan
Join Date: Mar 2009
Location: Goldsboro
Posts: 288
M.O.C. #9143
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Try to cut the belly along a cross member or lengthwise member wherever possible. It makes taping it back together much, much easier.
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12-08-2014, 08:35 AM
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#4
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Montana Master
Join Date: Feb 2012
Location: Lake Gaston
Posts: 8,773
M.O.C. #12156
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I was able to drop mine without cutting, except for one slice for the propane lines. You did not indicate if there were signs of leakage, just odor. Usually, you can spot a leak if you have one because the belly swells where the leakage collects. If you spot that, drill a small hole, to watch and verify before you deal with dropping the underbelly.
__________________
Mike and Lorraine
2002 3655 FL, 2005 3650RK
2010 3665RE, 2015 3910FB
F350 crew cab dually 6.7
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12-08-2014, 09:24 AM
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#5
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Seasoned Camper
Join Date: Jan 2014
Location: Apache Junction AZ
Posts: 54
M.O.C. #14022
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Mind did that and come to find out it was were the pipe went into the black tank it cracked around it and when it got so full it would open up you can access that by taken the wall down in the basement and look right in there on top of it . Good luck
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12-08-2014, 10:50 AM
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#6
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Montana Master
Join Date: Oct 2009
Location: Navarre
Posts: 1,527
M.O.C. #9765
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Had similar indicators as you for a couple of years. Could not see defect from above or below. Checked it out at home base and could only see area where fluid was flowing. Once removed, top was split on right side from (looking forward) right rear to nearly center of tank.
Extended warranty is a good thing.
Mike
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12-08-2014, 12:09 PM
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#7
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Montana Master
Join Date: Jan 2005
Location: North Ridgeville
Posts: 20,229
M.O.C. #2839
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Five leaking tanks on our 06 3400 and two thus far on our 13 3402 Big Sky. The tanks split at the top, the sides, the bottom. They are obviously not designed to hold much of anything.
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12-08-2014, 12:30 PM
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#8
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Montana Master
Join Date: Jun 2010
Location: Colorado Springs
Posts: 3,335
M.O.C. #10496
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If you do get under the rig for any maintenance, remember to wear eye protection. Poo in the eye would not be a good memory!
__________________
2010 3150RL
LevelUp, Dual 6 volt batteries, Progressive Industries EMS HW50C, Honda EU2000i Generator, Bridgestone Duravis R250 tires, Torklift Glowstep Revolution Stairs, LED Tail lights
2015 RAM 3500 Laramie SRW LB CC Cummins 6.7L Aisin Trans B&W RVK3600
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