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Old 07-16-2006, 08:20 PM   #3
GStream40
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Join Date: Nov 2005
Posts: 936
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As was mentioned the gauges are not accurate because of toilet paper and other things being stuck to the sensors.

Also, most people don't realize it and the dealers do not tell the new owners that one should hold the button in for a while sometimes up to a couple of minutes for the low current to dry off the sensors, then you will get a more accurate reading as long as material is not shorting out the sensors in the tank.

I have heard of the bathroom sink and shower being connected to the black tank, but haven't heard of any manufacturer doing that for many years. Never the kitchen sink.

The best way to check is to open the gray water dump valve, then run water in the kitchen, after you verify that water comes out while running it in, do the same for the bathroom sink and shower. That way you will know what is connected to which tank.

You probably do have a 40 gallon black tank, just the good old inaccurate sensors giving you false information. I know ours does a lot of the time when we are using the toilet in the coach.

Ron
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