Use Your Commercial Building as a Rain Water Collection System
It is amazing how much water is wasted and never retained by municipalities or County governments during large rainfalls. There are often storms which dump 2 to 3 inches of rain in a region and what people don't understand is that a large parking lot at Walmart could collect well over 1.5 million gallons of water during a storm that size. And that's just the parking lot. Obviously parking lots have dirty water, but parking lots could employ strategies of having vegetation and retention basins which allow the rain runoff to percolate into the groundwater - indeed some do. Now then, let's discuss the amount of water that could be collected from the roof. A storm the size of 2 to 3 inches will put well over 75,000 gallons of water on top of a Walmart retail store. That's a lot of water, and it should not be wasted. That amount of water is enough to water all the shrubbery, and grassy areas of a major shopping center, thus, it ought to be collected. Of course there is a rig