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09-30-2021, 12:03 PM
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#1
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Montana Fan
Join Date: Apr 2017
Location: Indio
Posts: 103
M.O.C. #19705
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Black Tank leaked but repair can't find the leak???
On a recent trip, went through the "ice cube" routine on one leg of the trip. On arrival for that nights stay, noticed the "porta-potty" smell INSIDE the 5vr. Checked and saw what appeared to be about a gallon or so of black tank fluids leaking onto the ground. Emptied the tank, kept tank level low remainder of the trip. Made arrangement to turn in the rig for repair at our usual repair shop which was done...30 days later they tell me they can't find any leaks/cracks, etc. on the black tank...they state they filled it full of water and nothing was leaking out! I'm dumfounded as to why, after seeing AND smelling the leakage that they are unable to determine where the leak source is...still waiting for repairs to be finished. FRUSTRATING to say the least.
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Richard & Judy Blackwell
Indio, Ca.
2014 F350 DRW 4x4 Diesel
2013 3402RL
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09-30-2021, 02:32 PM
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#2
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Montana Master
Join Date: May 2019
Location: Alton
Posts: 2,892
M.O.C. #24086
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Maybe have them check all the tanks just in case it was one of the others?
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Daryl and Marianne,
2019 3130re 20th Anniversary Edition
2016 F350 Lariat
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09-30-2021, 08:47 PM
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#3
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Montana Fan
Join Date: Apr 2017
Location: Indio
Posts: 103
M.O.C. #19705
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The "porta-potty" smell was the give-away...and the location of the visible fluid leakage which was directly underneath the location of the black tank on my rig
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Richard & Judy Blackwell
Indio, Ca.
2014 F350 DRW 4x4 Diesel
2013 3402RL
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10-01-2021, 12:20 AM
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#4
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Montana Master
Join Date: Jun 2018
Location: Carson City
Posts: 2,017
M.O.C. #21963
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The older tanks were often two piece tanks. They can split at the welded seam and not be obvious upon visual inspection. Filling it full will reveal a leak. I would question their diagnosis.
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2016 3160, Legacy, Sailuns, Splendide 2100 xc vented, 1 1/2" axle lift blocks, disk brakes. 2014 Ram 3500 SRW SWB 4X4 6.7 Aisin Mega Cab, EBC slotted disks and brakes, Titan fuel tank.
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10-01-2021, 10:11 AM
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#5
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Montana Master
Join Date: Apr 2006
Location: Mesa az
Posts: 3,036
M.O.C. #5651
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Also, sometimes the downspout that connects into the top of the tank will pull off. doesn't cause too much of a problem unless it is full or partly full and bumping down the road. Ask me how I know! Drove all the way home from Saskatchewan to AZ and just didn't travel with anything in the tank.
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Tom and Gail
2013 Mountaineer 362
2012 Silverado 2500
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10-01-2021, 05:34 PM
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#6
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Montana Master
Join Date: Jun 2018
Location: Folsom, California
Posts: 575
M.O.C. #21903
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Quote:
Originally Posted by twindman
Also, sometimes the downspout that connects into the top of the tank will pull off. doesn't cause too much of a problem unless it is full or partly full and bumping down the road. Ask me how I know! Drove all the way home from Saskatchewan to AZ and just didn't travel with anything in the tank.
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Yea, and replacing one is lots of fun! Don't ask me how I know.
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'05 F250 6.0 Bullet Proofed - Sold
'17 F350 6.7 Lariet
'02 Montana 3280RL Upgraded a bunch.
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05-16-2024, 01:46 PM
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#7
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Seasoned Camper
Join Date: Sep 2020
Location: Artesia
Posts: 66
M.O.C. #27061
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Having a leak on my black water tank when I fill for flushing out. Started when I tried to fill to the commode for a real good flush. Noticed it leaking out the side of the chloroplast. Any recommendations?
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Roy, Georgia, Bear & Star desert rats USN vet
:dance
2015 375FLF MOUNTAINEER
2012 F350 SWD CREW
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05-16-2024, 05:43 PM
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#8
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Site Team
Join Date: Oct 2005
Location: Carmichael - CA
Posts: 7,686
M.O.C. #4831
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Roy & Georgia - Those two piece tanks do not like being filled to the top. The pressure will cause the cap piece to separate from the tub. You can replace the tank or try to repair it. Here is a recent discussion of the same exact issue.
https://www.montanaowners.com/forums...ad.php?t=91016
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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
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