Can anyone recommend websites or other resources for referencing greywater treatment systems that utilize macrophytes and other plants (wetlands or otherwise)? I'm researching designs for residential use. Thanks, kh Kirk Hanson C/O Permaculture West 72 Mattson Rd. Oakville, WA 98568 ph./fx. (360) 273-7117 e-mail: permawest@olywa.net