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Old 06-03-2016, 04:56 PM   #1
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Grey water tank

Hello all I have a 274 dbh tt and am confused. My grey water tank indicator light is reading 2/3 full but have not used tt in over a week. Tanks emptied before we closed up after our last trip. Any help with why would be appreciated.

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Old 06-03-2016, 05:04 PM   #2
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The level indicators on black and grey tanks are notoriously incorrect. The system consists of 3-4 metal sensors ( many times just screws) in specific positions in the tank. When the liquid in the tank reaches a sensor it conducts electricity back to the display panel. If a piece of crud ( food, paper, etc) gets stuck on the sensor, it conducts to the damp sides of the tank and appears to be a liquid level. Deciding when to empty your tanks is a combination of indicator readings and understanding roughly how much liquid was put in the tank. Sometimes cleaning the tank works and sometimes it doesn't.


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Old 06-03-2016, 05:31 PM   #3
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Thanks Flybob
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Old 06-07-2016, 07:27 PM   #4
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My level indicators are all over the place too. I've dumped, verified they show empty, then drove to another location only to find they are showing various levels. I have found that as the tanks fill, it gets more accurate.
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grey water, tank, water, water tank

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