The amazing and prolific storms that moved through central Texas yesterday and last night got us to thinking about rainwater harvesting systems again. We've been proponents of the idea since WAY back to our first project out at Deep Eddy West. For that project we used two 10K gallon tanks to capture the rain from over 4000s.f. of roof area off two separate buildings. The water is used for potable water as well as landscape irrigation, and actually lasted them through the recent drought (just barely!) Of course that particular 20K gallon system was integral to the overall design of the project. We knew rainwater was going to be a big component from the get-go and designed the buildings and systems accordingly (hence the butterfly roof on the big building and the shed roof on the smaller building...)
There are also simple systems available for retrofit applications for collecting rainwater for landscape usage around your house. Non-potable systems are incredibly easy, especially if you already have gutters and downspouts. Our personal favourite system is the RainWater H2OG. We like it so much that we became distributors of the product and use the tanks in our own projects for most any situation where we need to hold water (potable water and waste water tanks for our various food trailer projects.) The best part of the Rainwater H2OG system is that it is low-profile and modular, so it can be installed along the walls of your house, distributed around to various downspout locations, or built within the structure of a wooden deck. No more needing to figure out how best to hide a big ugly old water tank.
If you'd like some pricing information for the rainwater hogs, or to discuss the install of an entire rainwater harvesting system give us a shout.