Rainwater

Systems, Inc.

Kerrville, TX

2010 © Rainwater Systems, Inc.   |   Web Development:  www.showcase-creations.com

830-315-7246 (RAIN)

Most people do not realize just how much water they can collect from a single inch of rain. It's simple to figure out when you have the right formula...

Take Your Under-Roof Square Footage and Don't Forget to Allow for Porches, Overhangs, Carports, Garages, Barns, Pole Barns, Etc.

Now Multiply the Under-Roof Square Footage by .60.

Square Feet x .6 = Total Amount of Water per 1" of Rain

Take Your Average Rainfall for the Area and Multiply It by the Sum of the Above Number

This Number Will Reflect the Amount of Water You Can Collect in an Average Rainfall Year in Your Area

Example Using an Average of 32" per Year:

2,000 Square Feet x .6 = 1,200 Gallons per 1" of Rain

1,200 x 32 = 38,400 Gallons of Rainwater per Year

This Sample Dwelling Could Collect Approximately

38,400 Gallons of Rainwater per Year

Do the Math to See How It Can Work for You

830-315-RAIN (7246)