I don’t know if any of you have thought about rainwater harvesting before, but I thought I would touch on the subject here and maybe provide you with a little incentive. I truly believe that if people knew just how much water they could get off their own roofs, they would jump at the chance of doing it. There is an initial expenditure for the guttering, barrels and sundries, but think of the vast sums you could save in the long term! Round Rock lawn care.
The formula for figuring out how much rain water you can collect off your roof is
Roof square footage x .623 gallons per inch of rainfall x annual rainfall in inches.
The variable is .623 – A cubic foot of water being equal to 7.48 gallons, which when divided by 12 (i.e. inches in a foot) equals .623 gallons per inch of rain.
So, for instance, if you have a 2000 square foot roof area that has been guttered, you can expect to harvest over 1,200 gallons of water from a single inch of rain! Also, consider this: even in the severe drought of 2011 the Austin area still received 16.90 inches of rain, converting to a yearly rainwater harvesting total of over 21,000 gallons for the same sized roof!
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With that kind of production I could gutter my hat for drinking water!