Collect rainwater for use in evaporative coolers
Low in minerals, collected rainwater is ideal for use in evaporative coolers (also known as swamp coolers).
These systems, which promote cooling through evaporation, are more common in dry climates where freshwater may be scarce. Collecting rainwater reduces storm-water runoff, which can cause erosion and pollute surface water. Stored rainwater must be protected from light, then filtered and treated to prevent microbial growth. Chemical water treatment systems should be avoided.
The legality of rainwater collection is unclear in some western U.S. states with “appropriative water rights.” At issue is the “taking” of water from a potential downstream user. Check with state water rights administrators for applicable rules.
Green points
LEEDLeadership in Energy and Environmental Design. LEED for Homes is the residential green building program from the United States Green Building Council (USGBC). While this program is primarily designed for and applicable to new home projects, major gut rehabs can qualify.
-H: Up to 4 points for a rainwater harvesting systems (WE 1.1).
NGBSNational Green Building Standard Based on the NAHB Model Green Home Building Guidelines and passed through ANSI. This standard can be applied to both new homes, remodeling projects, and additions.
/ICC-700: 6 points for collecting and using rainwater; 2 points for distributing rainwater with a renewable energy source or gravity (801.8).
Learn more in the Green Building Encyclopedia
Profiled in our Product Guide
