The best i can come up with are inline gallon counting meters. Thats nice, but your constantly having to keep track of numbers if your not using the whole reservoir each time.
Then theres the tanks/barrels with hashmarks that show you how much water the unit is holding. In most cases these are not a very accurate means of finding a precise amount of water such as to the individual gallon , especially if its a larger, wider tank.
Aside from weighing the reservoirs, or measuring, them each time, is there a tool that you can just stick in the tank, and it will tell you how many gallons/liters are in it?
Then theres the tanks/barrels with hashmarks that show you how much water the unit is holding. In most cases these are not a very accurate means of finding a precise amount of water such as to the individual gallon , especially if its a larger, wider tank.
Aside from weighing the reservoirs, or measuring, them each time, is there a tool that you can just stick in the tank, and it will tell you how many gallons/liters are in it?