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You'd expect the answer to be 'B' but we only wash our cars every
couple of weeks while we shower everyday!
Shower running continuously wastes the most water because
over the course of a month ....
* Wash car hose running consumes 30 mins water. (wash
fortnightly = 2 days x15 mins)
* Hosing pavement consumes 20 mins of water. (once a
week = 4 days x 5mins)
* Brushing teeth twice a day consumes 30 mins of water.
(30 seconds each time)
* Showering wastes 60 mins of water each month. Even
with a 4 minute shower, 2 mins is spent soaping up, conditioning,
shaving,
while you step away from the water stream.
(30 days x 2mins of wasted water)
Double this if you shower twice a day! (2hrs
of water @ 9 litres per min = 1080 litres!)
Multiply this by the number of members in
your family. Atleast the whole family can fit in the clean car.
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B 
D
