Capturing the water you already have: Using alternate onsite sources

Abstract

Onsite sources of water such as air‐conditioner condensate, rainwater, and foundation drain water are often untapped resources that can help save significant volumes of potable water and wastewater. The use of these sources can reduce peak demand on a utility and the subsequent need for future water treatment expansion to meet growing demands. Capital costs are transferred from the utility to the user. Public and private interest in alternate on‐site sources is growing, and there is much opportunity for those who make use of it. However, further development of building codes and regulatory guidance will be necessary to protect public health and promote good design.