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Old 12-25-2009, 10:27 AM
Kevbo Kevbo is offline
Join Date: May 2005
Posts: 5,893
Originally Posted by EdwardLost View Post
I guess soap and shampoo might be a bad idea in the cistern, though I hate the idea of sending that water into the sewer. Maybe there are some lawn-friendly soap products we could switch to.

If you have enough flat land, you can treat gray water using cattails. The water slowly flows down a wide shallow ditch filled with sand/gravel with cattails growing in it, and emerges at the far end clean enough for irrigation use, toilet flushing, etc.