Car wash : How much water do we waste ....?

Car wash : How much water do we waste ....?

I'm trying to calculate the Car wash WATER wastage:
My neighbourhood has about 300 houses, each with at least 1 car.

So, some simple maths-

300 cars X 20ltrs ( 1 bucket) = 6,000ltrs a day.

Thats 6,000ltrs x 300 days ( leaving sundays & holidays) = 1,800,000ltrs a year !

WOW...... 1.8 million liters of precious water....down the drain every year??!

....and that, in a small 300 home neighbourhood ! 
Time to think.....

Water water everywhere-

But NOT a drop to drink ! ....heard that somewhere sometime.

I wrote a small poem: 

So, we harp at it's lack, 
and crib when it floods,

wash our cars everyday to a shine so bright and sleek !
Hosing it to the gutter, 
with all our crappy cruds,

enough water in an hour what many could use for a week!!

Blink Astro conducts successful field demonstration in Georgia – Blink Astro, A SpaceWorks Company

Blink Astro conducts successful field demonstration in Georgia – Blink Astro, A SpaceWorks Company

Wow !!  Cubesat application Venture !!

 Blink Astro, LLC (Blink) is an Atlanta-based company developing a low cost satellite-based solution for machine-to-machine (M2M) and satellite-based Internet of Things markets. Using affordable, modular BlinkSats™ and proprietary ground units called BlinkRs™, Blink and its partners will deliver a global network for low bandwidth device connectivity to a variety of customers in precision agriculture, transportation, energy, environmental monitoring, and defense. Blink Astro™ is a member of the SpaceWorks Enterprises family of companies.