After a presentation by Davin Wentworth-Thrasher at a San Francisco Post Carbon meeting, Richard Katz decided to have a project/party at his house on Potrero Hill to work on a small catchment system that as a learning project for interested individuals.

A vista from near Richard Katz's house on Potrero Hill. Looming in the background of the Potrero Hill catchment party is twin peaks, featuring Sutro Tower, San Francisco's ugliest landmark.
(photo: dbrumm)

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