Edwin Pawlowski wrote:

"Pete C." wrote in message
...
Kurt Gavin wrote:

I've got a 500 gal tank. How do you determine how many gallons are
currently
in the tank?

Thanks

Accurately - weigh it and compare to the tare weight that should
hopefully be listed on the tank data plate.

How do ypu propose lifting the 500 gallon tank onto a scale?

Forklift? Crane? I didn't say it was very practical, only accurate.



Roughly, get one of those liquid crystal stick on propane tank gauge
things and keep moving it down the side of the tank (doing the hot water
thing) until you find the LP level. You'll have to watch extra closely
since the tank wall will be thicker than the wall on a 20# tank. Just
remember that other than the half full point, the scale is not linear
due to the cylindrical shape of the tank.

For those to work, the gas has to be siphoning off to create the temperature
differential. I think you'd have to be using a lot of gas to make it read.

I don't think so, the rate of heat loss will be different above and
below the liquid line and should show that differential as that tank
cools from the hot water application.

Pete C.