Robert Foley explains how a master plumber created his own 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
Learn how the author created methods for harvesting rain for drinking water.
The roof gutters carry water down into a series of interconnected storage tanks. (The tanks must be impervious to light, otherwise algae will grow.)