Commercial Food Services
Dishwashers | Food Steamers | Ice-Makers | Pre-Rinse Spray Valves (PRSVs)
The Council's 2002-2006 Rinse & Save Program was one of the most successful statewide water-efficiency programs in California. It's full-service direct installation of PRSVs is an approach being copied in a number of locations elsewhere in North America, yielding significant energy and water savings benefits for food service operators. For details on this program and savings data, download the reports for each of the three program phases:
- SBW Final EM&V Report - Phase 1 - Rinse & Save (PDF)
- SBW Final EM&V Report - Phase 2 - Rinse & Save (PDF)
- SBW Final EM&V Report - Phase 3 - Rinse & Save (PDF) (coming soon!)
Reports on programs and field trials in other locations provide information on water savings experienced and difficulties faced:
1) A Pilot Study undertaken by the Regional Municipality of Waterloo, Ontario measured water use "before" and "after" PRSV retrofits in 10 different food service operations in the region. Veritec Consulting, Inc. measured water use at each installation using datalogged paddle-type flow switches and pressure loggers. Savings on a per hour of use basis exceeded by about 30 percent that found in the Council's Rinse and Save Phase 1 Program as documented in the SBW Consulting's Evaluation, Measurement, and Verification (EM&V) Report.
- Veritec - Waterloo PRSV Pilot Study Report (PDF)
2) A second study was performed in Calgary, Alberta, and also involved "before" and "after" measurements at 10 installation locations:
- Veritec - Calgary PRSV Pilot Study Report (PDF)
3) An comparative analysis of the Rinse & Save Program results with those of programs in the Puget Sound region of Washington State provides additional information:
- PRSV - Comparison of Program Results (PDF)
4) Finally, the FSTC has developed a simple cost calculator that yields water and energy use for the "old" and "new" PRSV that is installed in food service. Find it here:
- http://www.fishnick.com/saveenergy/tools/calculators/