Sensors

[SueBane]

Regarding the control panel, the sensors for the tanks are not accurate. The fresh water showed as low all the time even after being filled. The black and grey tank showed 3/4 full. Are you able to rely on your control panel?


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[livinthelife]

Regarding the control panel, the sensors for the tanks are not accurate. The fresh water showed as low all the time even after being filled. The black and grey tank showed 3/4 full. Are you able to rely on your control panel?


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Lack of accuracy on tank sensors is a well known fact. After a while you learn when your tanks are full and/or need dumping/refilling.

[CoChris]

....Are you able to rely on your control panel?
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No. The tank level indicators are very inaccurate. The black tank is the most inconsistent. Many discussions about them here on the forum. You can find them with the search function (upper right corner of every page). After a while of use, you will learn how fast you use/fill the tanks.

Chris

[eodenc]

Anyone know what gallon levels the sensors are actually set at roughly? We would fill our fresh water until it showed full but not coming out of the overflow. I wonder if we are shorting ourselves a gallon or 5 gallons.

[Calbar]

Anyone know what gallon levels the sensors are actually set at roughly? We would fill our fresh water until it showed full but not coming out of the overflow. I wonder if we are shorting ourselves a gallon or 5 gallons.

Not sure what the levels mean in gallons but I fill mine until water starts coming out of the overflow. Once we start to use water it stays at the full for some time.

Rob

[CoChris]

Anyone know what gallon levels the sensors are actually set at roughly? We would fill our fresh water until it showed full but not coming out of the overflow. I wonder if we are shorting ourselves a gallon or 5 gallons.

I know what the sensors correspond to in gallons on my trailer, and they vary (a lot) between the tanks. The sensors are very imprecise and inconsistent. I have three waste tanks (2 gray and 1 black). All three are the same size (listed as 45 gallons). An indicated 1/3 full on each tank is actually 10 gal (black), 5 gal (gray 1) and 13 gal (gray 2). THIS WILL BE DIFFERENT FOR EVEY TRAILER. When I first got the trailer (brand new) I measured the capacity by using a flow meter (about $18 off Amazon. Many to chose from) and filling each tank from the hose, noting the gallons when each indicator light came on. On top of the inaccurate/inconsistency of the sensors, the tanks are very shallow (to fit inside the frame) and even a very slight change of trailer level can affect the indicated level.

For the fresh water, if I want a full tank I fill until water starts coming out the overflow. Note: According to Grand Design specs, I have an 80 gallon fresh water tank (plus a 12 gallon water heater). I have filled the fresh water tank many times and I get ~70 (68~71) gallons until it starts overflowing. This is not uncommon on trailers and lots of possible causes.

Chris