Greywater and/or Dual Plumbing System Research

While large-scale, utility-wide reuse systems are gaining in popularity, small-scale, residential systems are fairly uncommon and so is research about the impact of these systems.

To search for information on the subject, we recommend the following web sites. Please keep in mind that greywater may be spelled "graywater" or "greywater" and both should be tried when using web-based search engines.