Commercial buildings are ideal for Rain Catchment Systems because of the huge
surface area available for capturing rain.

 

Using a Rain Catchment System for a supplemental water supply greatly reduces monthly water costs. An estimated 5000 gallons of water is used on a monthly basis to accommodate 100 people using the bathroom just once a day.

 

Reduce the use of potable water by using rainwater for toilets, cooling systems,
landscaping, fountains and washing cars, planes or golf carts.

 

Companies such as Lufthansa, Sony, Canon and Volkswagen have implemented Rain Catchment Systems in either their offices
or production facilities. 
 
Two terminals in a Singapore airport successfully  harness enough rainwater to meet the needs for 
toilet flushing, fire fighting & air conditioning.