Litres. However another unit that may be used is m3(cubic metre) . One m3 is equal to 1000 litres.
The best unit is a litre.
The best unit for measuring the length of a pencil is inches.
You can use a graduated cyllinder or a big pipette of 50 mL.
Graduated cylinder
Since water towers generally have a very large capacity, I would say that cubic meters might be the best bet. You can measure the total volumetric capacity of the water tower in cubic meters and then determine the volume of water that is currently in the water tower. However, an amount of water can also be measured in liters.
The best unit of measure to use when measuring the amount of water in a drinking glass is ounces. A liquid measuring cup can be used to measure the ounces of water.
A millilitre.
In liters
millilitres
liters
gallons unedeadknight:Liters.
deciliters all the way
amount of what.
A narrow measuring beaker.
Cartons
Mililiter
The best unit is a litre.