From the bloggers at Do It Yourself RV.
If you’ve got some propane tanks of unknown quantity or fill level, don’t despair. Here’s what you need to do to check the level.
While you can always do it the textbook way and get a scale and weigh the tank (or use a propane tank gauge scale), this tip only requires a bucket of hot water.
All you’ve got to do is take a bucket of hot water, and pour it down the side of the tank.
To read the full story by Do It Yourself RV, click here.