How much is the cost of rainwater harvesting?
Rainwater harvesting systems are inherently simple in form, and can often be assembled with readily available materials by owner-builders with a basic understanding of plumbing and construction skills. A rainwater harvesting system designed as an integrated component of a new construction project is generally more cost effective than retrofitting a system onto an existing building. Other variables which affect system economics include choice of tank and filtration. Rainwater harvesting systems for buildings designed to fulfill all water requirements can be as costly. However, there is evidence that with careful planning and design, the cost of a rainwater system can be less than the cost of a well in many cases. In general, maximizing storage capacity and minimizing water use through conservation and reuse are important rules to keep in mind to make it cost effective.
