I recently had a second 80 gallon propane tank installed so that I would have extended run time for my 9Kw whole house generator.
The second tank is connected to the first tank and to my generator, and the first tank has a line that runs into my home for a gas fireplace.
The first tank's gauge currently reads 70 gallons, but the second tank is sitting at around 10 gallons. I realize that propane is a liquid in the tank, but as a load is placed on the tank, the liquid turns into a gas and it's this gas at the top of the tank that exits the tank and is used by whatever is generating the load.
So my questions are:
Should I ever expect the tanks to equalize on their gauges? I expect the answer is no, as only the gas will readily transfer between the tanks.
Can I infer the overall quantity of propane left in both tanks by reading the gauge on just one tank? I ask this, because the new tank has a gauge compatible with automatic tank level reading devices, and I'd love to add this to my setup.