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City Code Chapter 14, Buildings and Building Regulations <br />Article 6, Plumbing Code <br />DIVISION 2. WATER CONSERVATION <br />Self-service carwash means a commercial car wash in which the vehicle is washed manually within a <br />wash bay by the customer using high-pressure sprayers and brushes. <br />Shrub riser means a device that elevates a sprinkler head several feet above the ground surface so <br />that water is applied over the top of shrubs and other tall landscape plants. <br />Single -pass water cooling means a process in which water is circulated only once through a piece of <br />equipment to cool it before being discharged to the waste stream. Single -pass cooling, also known as <br />once -through cooling, is often used for CAT scan, x-ray equipment, degreasers, hydraulic equipment, <br />condensers, air compressors, welding machines, vacuum pumps, ice machines and air conditioners. <br />Solenoid shutoff valve means a device which opens a valve only when an electrical current is applied, <br />and closes the valve when no current is present. <br />Static water pressure means the pressure of water when it is not moving. <br />Subsurface drip means the slow application of water, usually under low pressure, beneath the soil <br />surface. <br />Surface drip means the slow application of water, usually under pressure, at the soil surface. <br />Swing joint means a flexible joint or pipe connecting a sprinkler head to a lateral pipe. <br />Water budget means a feature on a landscape irrigation system controller which allows the user to set <br />a monthly or seasonal water schedule based on evapotranspiration and/or rainfall amounts. <br />Water recirculating system means a system of pumps, tanks, and treatment components used to treat <br />and reuse water continuously for a single purpose. <br />Zone valve means an automatic valve that controls a single zone of a landscape irrigation system. <br />Section 14.121. Car washes. <br />(a) New conveyer car washes must be equipped with a water recycling system. <br />(b) New in -bay automatic car washes must use water recycling systems, ultra -low -flow spray nozzles or <br />alternative means to achieve fresh water usage of no more than fifty-five (55) gallons per vehicle. <br />(c) New and existing self-service and mobile car washes must utilize positive shutoff device spray <br />wands with a flow rate of no more than three (3) gallons per minute. <br />Section 14.122. Cooling systems. <br />(a) New cooling systems may not utilize single -pass water cooling for any purpose. <br />(b) New cooling systems must be designed and operated to achieve a minimum of four (4) cycles of <br />concentration. <br />3 <br />