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Old 02-13-2012, 08:31 PM
txirrigation txirrigation is offline
LawnSite Senior Member
Join Date: Aug 2010
Location: Texas
Posts: 969
Originally Posted by ed2hess View Post
Did you by chance see any numbers on how much water they project they
can harvest per year? I would guess most homes average around 140,000 gallons of water used each year.
There is a formula that you use concerning the square footage of the roof, historical rain fall and storage size.

Drip spacing depends, I generally use 12" spacing and rainbird tube on resi installs. On commercial I have used up tp 18" spacing NF.
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