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Show TABLE 3 Vehicle Wash Facility water usage Type of Facility Operations water use, Gallons/ vehicle Driveway Hose application of water, manual soap application, hose rinsing, manual drying. 50 - 200 Tunnel Fully automatic external wash with manual interior cleaning, wiping and drying. Possible to recycle up to 85 percent of water and only use fresh water for final rinse. 50 - 200 Bay Wand type of water spray to soap and rinse vehicle. 30 - 100 I comet touch free wash Pressure system with high pressure hoses. Possible to recycle up to 65 percent of water and only use fresh water for final rinse. 30- 45 Delta sonic Friction system with foaming brushes. 30- 40 Bay with spray nozzles Air and water jet reduces water flow rate and conserves water use. 14- 20 wax and dry Clarify and reuse water, foaming brushes with recycled water, only use fresh water for final rinse cycle. 7- 14 ' TABLE 4 Vehicle wash Facilities in Utah Salt Lake City water Reclamation Facility 80 south valley water Reclamation Facility 38 central valley water Reclamation Facility 95 for a period of time during which the heavy solids ( grit) settle out. As previously mentioned, the process is not 100 percent approaches efficient and, therefore, some( grit may carry over into the wash water. Because of this, clarification is only used for the friction type of wash system. It has been reported that car wash owners are dissatisfied with this system. The capital cost of a clarification type system is estimated at approximately $ 30,000 installed in a new facility. Costs would be higher for a retrofit. Operating costs are difficult to define due to the increased maintenance on other 62 |