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Old 08-25-2019, 02:24 PM   #1
4 Rivet Member
2017 20' Flying Cloud
Williamson County , Texas
Join Date: Apr 2017
Posts: 278
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Grey Water Tank Guage Reads High

Our 2017 Bambi FC 20FB seems to have a calibration or location issue with the grey water level. Capacities are 23/21/18 Fresh/Grey/Black.

When tanks are empty all read zero. When fresh water tank is down to 40% the grey water tank reads 100%. (Black maybe 20%).

I guess I can do some filling and emptying to measure actual capacities (like starting with empty tanks and adding 10 gallons to each and checking readings. However since it is obviously off, wondering what might be the problem and if there is a way to calibrate it, or of has somehow "slipped" out of position.

This is of course with no "city water" connection.
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Old 08-25-2019, 02:54 PM   #2
The Aluminum Tent 3
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2014 23' Flying Cloud
Park City , Utah
Join Date: Aug 2015
Posts: 1,658
LOL. My grey will read half full, I'll empty it, then it'll read full. Put a little water in it...empty or 1/8. Bottom line...don't bother trusting tank monitors they are a joke.
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Old 08-25-2019, 03:14 PM   #3
Half a Rivet Short
2017 30' Classic
Carlisle , Pennsylvania
Join Date: May 2017
Posts: 8,895

If you calibrate your monitors, be sure to do so against the angle of the trailer. Since you can be "tipped" both front to back and side to side, there is a lot of data to collect.

My fresh water tank read 100% at the campground this morning. Now it's reading 80%. Either somebody drank a lot of water while we were on the road or the level between the two sites is "worth 20%" on the reading.

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