Rainwater barrels connected to downspout.

http://durgan.org/2012/March%202012/22%20March%202012%20Rainwater%20barrels%20connected%20to%20downspout/HTML/ 22 March 2012 Rainwater barrels connected to downspout.
The four drums connected to the house downspout. There is a total of 200 US gallons of water. The connections are removed in the Fall and the barrels emptied to prevent freezing.