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Old 06-03-2020, 09:31 PM   #1
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Galley tank

Hello, I have a 2004 Montana Mountaineer 5th wheel. I purchased it recently from a private party. I seem to be having trouble with my galley tank not emptying. I have the grey tank handle open thatís located in the rear of the trailer. Iíve emptied both grey and black and my sensor is still reading that my galley tank is full ? Help!! I need to do dishes and Iím afraid to run any water
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Old 06-03-2020, 10:02 PM   #2
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Join Date: Jan 2007
Location: Camano Island, Washington
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Even though the Montana is not a Forest River product, all OEM RV sensors are notoriously inaccurate.
And previous owners may not have properly maintained the holding tanks.
Dan-Retired California Firefighter/EMT
Shawn-Musician/Entrepreneur/Wine Expert
and Zoe the Wonder Dog(R.I.P.)
2016 PrimeTime TracerAIR 255, pushing a 2014 Ford F150 SCREW XTR 4x4 3.5 Ecoboost w/Max Tow Package
4pt Equal-i-zer WDH and 1828lbs of payload capacity
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Old 06-04-2020, 11:52 PM   #3
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Leave the grey water valve open and the cap off the sewer connection, obviously. Run water into the sink and watch the drain. If water comes out with the faucet on, and stops coming out when the faucet is turned off you will know the tank is really empty and it is a sensor problem.
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