What's the reason for "purple pipe?"

What's the reason for "purple pipe?" We get that question a lot. Purple Pipe means "reclaimed water." Large property owners such as parks, municipalities and HOAs use non-potable-untreated water for irrigation purposes. The source of the water includes stormwater collection, pond-water, chiller condensate, recycled boiler water and sometimes treated sewage. DON'T DRINK THIS STUFF. Its great for our plants but not for us. www.earthfirstlandscapes.com