Check the principal for the amount of children in the school, get everything water- based ( drinking water, toilet water, water used to wash hands,etc) and calculate by the number of students in the school.
alot
Depends on the size of the School,
8 cups
About 35 gallons.
On average hotels and motels use 21,500 gallons per day.
As of June 2009 the average daily water use per person per day was 220L.
150 gallons
about 1829
An average 160 lbs person will use 120 gallons of water (if they wash 2 loads of clothing)
150 kilo liter
about 300L/perday
293 gal.