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<br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br />. <br /> <br />Residential Secondary Water Meters - Research Proiect <br /> <br />4.0 LITERATURE REVIEW <br /> <br />4.1 Meter List <br /> <br />This task includes finalizing a complete and exhaustive list of meter manufacturers and types of <br />meters. This list has been started and is induded in Appendix A of this proposal. The meter list <br />will include meter type, brand, model, cost, filtration requirement, flow range, rated accuracy, <br />distributor contact information, and power requirement. <br /> <br />Deliverable: A table of meters types, brands, costs, etc. <br /> <br />4.2 List of Secondary Water Suppliers <br /> <br />Compile a list of water districts that currently supply pressurized irrigation water or are <br />planning for this in the future. It is anticipated that much of this information can be obtained <br />from State resources. <br /> <br />Deliverable: A list of water districts and municipalities with contact information <br /> <br />4.3 Previous Meter Tests and Reports <br /> <br />This task includes researching documented tests conducted by A WW A and meter <br />manufacturers on the effects of particulates in water, water hammer, chemical buildup on <br />meters and their effect on accuracy. <br /> <br />Document all reports, discoveries to date by water districts, universities, governments, and <br />meter manufacturers that address or shed light on metering secondary water. <br /> <br />The Irrigation Technology Research Center (IRTC) at CalPoly San Luis Obisbo University is <br />currently teaming with USGS, USBR, and a meter manufacturer to investigate the use of some <br />new Doppler meter technologies in a canal at the Water Delivery Facility at Ca1 Poly. This <br />research would examine these technologies to determine how well they work and what, if any <br />modifications could be made to reduce the cost. It is important that the information gained <br />during Ca1Poly's study be coordinated with this study. IRTC will be meeting with various U.S. <br />and Australian manufacturers of magnetic, vortex shedding, Doppler, and ultrasonic meters to <br />determine the suitability of their devices in their current configuration for flow measurement on <br />both large canals and in pipelines and small farm turnouts. <br /> <br />Additional research efforts have been initiated in New Zea1and8 that should be reviewed and <br />coordinated with the efforts of this study. <br /> <br />Recent developments in the ultrasonic industry can be researched at the U.S. Patent and <br />Trademark Office web site, particularly in regards to patents developed by Murray F. Feller <br />with Micanopy Measurements and Controls, Inc. who works in research and design for <br />ultrasonic companies like Onicon, Inc. and is interested in developing a meter specifically for <br />secondary water use. <br /> <br />Deliverable: A bibliography of previous tests and reports and hard copies of these <br />documents <br /> <br />9 <br />