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Last week I attended the PCBC Exhibition in San Francisco. This year there are more exhibitors and attendees than last year, which is good. Many products have been shown before, but two caught my eyes as particularly useful to help conserve water.

The

Distributed renewable generation systems such as solar electric and solar hot water systems are great ways to get clean energy. The price of these systems, in particular solar electric systems, has come down in prices so much in recent years that hom