Robert Foley explains how a master plumber created his own methods for harvesting rain for drinking water.
Learn how the author created methods for harvesting rain for drinking water.
To purify the water for drinking, it is pumped from a 5-gallon pressure tank (bottom of photo), through 25- and 5- micron filters (blue cylinders), then past a high intensity ultraviolet light (cylinder second from left) before flowing through a final carbon filter and into the house.
COURTESY ROBERT FOLEY
The roof gutters carry water down into a series of interconnected storage tanks. (The tanks must be impervious to light, otherwise algae will grow.)