How do you score?

Use the tables below to get an idea of your schools water usage.

Toilets

Multiply the amount of water by the times each activity is used during the day and add the daily totals from all activities to get the total for Toilets.

Activity Amount of water (litres) Times used (each day) Daily total
Old toilet cistern 13    
Modern toilet cistern 9    
New low volume cistern 6    
Hand washing (per person per day) 2    
Total toilets  

Automatic urinal flush

Multiply the amount of water by the number of bowls.

Activity Amount of water (litres) Number of bowls Daily total
Automatic urinal flush 120 (per urinal bowl every 24 hours)    
Total automatic urinal flush  

Showers

Multiply the amount of water by the times each activity is used during the day and add the daily totals from all activities to get the total for showers.

Activity Amount of water (litres) Times used (each day) Daily total
Power Shower
(with pump to increase pressure)
70    
Ordinary shower 35    
Total showers  

Kitchen / staff room

Multiply the amount of water by the times each activity is used during the day and add the daily totals from all activities to get the total for Kitchen / staff room.

Activity Amount of water (litres) Times used (each day) Daily total
Using a Dishwasher 35    
If you use the half load option 20    
Using a water efficient model 22    
Washing dishes by hand 6    
Cooking & Drinking
(per person per day)
10    
Total kitchen / staff room  

Daily water use

Add the daily totals from all activities to get the total for the school per day.

Activity Daily total
Toilets  
Automatic urinal flush  
Showers  
Kitchen / staff room  
Total for the school per day  

No account has been taken for water usage outside or if food is prepared within the school.

Daily water use per person

Divide the total for the school per day by the number of people to calculate the daily water use per person.

Total for the school per day / Number of People (pupils and Staff) = Daily water use per person

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