Offering informational publications on water conservation, rainwater harvesting, and greywater. Discounted Rain Barrel and Cistern Program for San Francisco residents. Website sections on: Rebates and Incentives, Residential Toilets, Residential Washers, Solar, Rainwater, Harvesting, Commercial Toilets, Commercial Washers, Commercial Urinals, Graywater, Direct High-Efficiency Toilet Installation, and a Water Efficient Equipment Retrofits Grant Program.