posted
The average roof in an area of at least 20" inches of rainfall per year can collect enough water for an average family if that family uses water conserving techniques such as using the water from showers,laundry and sinks for their landscaping and using native plants for landscaping(xeriscaping)and water conserving fixtures or even no water toilets such as composting,Solar toilets,and Biogas generators...
Posts: 89 | From: santa rosa,ca.u.s.a. | Registered: Aug 2000
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