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

Thanks

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

One way is to dump (maybe a lot of) ice water on the tank.
Assuming the dew point is above 32F, you'll see a line of dew where
the gas level is. The liquid propane will supply more heat to the
tank and there won't be dew there, but the gaseous propane on top
won't absorb as much and the tank will cool causing condensation.
I've seen LCD strips for 20lb cooking cylinders that would on the
same principle.

Of course, you could weigh it. ;-)

--
Keith