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ITT <br />1 r: �' ;: <br />_I <br />BOOK 0 F' <br />LLOYD & ASSOCIATES, INC. <br />ENGINEERS AND SURVEYORS ROBERT F LLOYD <br />REPORTS <br />DESIGNS <br />SUPERVISION <br />APPRAISALS <br />CONSULTATIONS <br />February 22, 1985 <br />Mr. Terry Pinto <br />Director <br />Utilities Department <br />Indian River County <br />1840 25th Street <br />Vero Beach, FL 32960 <br />HAND DELIVERED <br />re: Replacement of the Flow Meeter, <br />6th Avenue Sewer Line <br />Dear Terry, <br />REGISTERED CIVIL ENGINEER 3538 <br />REGISTERED LAND SURVEYOR 944 <br />DARRELL E. MCIJUEEN <br />REGISTERED CIVIL ENGINEER 21497 <br />(305) 562-4112 <br />1835 20TH STREET <br />VERO BEACH, FLORIDA <br />32960 <br />In compliance with your request we have made an <br />analysis of the problem of quantifying the amount <br />of waste water being delivered to the City ioaste <br />water treatment plant. <br />The three (3) types of equipment investigated to <br />accomplish this were the utilization of: <br />1. Parshell Flume <br />2. Magnetic Meters <br />3. Sonic Meter <br />The utilization of a Parshell flume would require <br />extensive yard piping, the construction of an ele- <br />vated platform at the plant inflecent or the re - <br />pumping of all waste if the flume were constructed <br />at ground level. The price of equipment was approx- <br />imately the same as a magnetic meter. <br />The use of a Sonic meter was rejected on the basis of <br />the plant Sonic meter having never been satisfactory <br />or operable. <br />It is our recommendation that a magnetic meter be <br />utilized to determine the monthly flow for billinq <br />purposes. This recommendation is on the basis that <br />magnetic meters are being satisfactorily employed <br />at the City of Vero Beach waste water treatment plant, <br />and have a history of low maintenance. To secure the <br />greatest possible accuracy, we recommend that a Krohner <br />American Model M 950 3" Magnetic Flow meter be used. <br />This Company was the original manufacturer of the Magnetic <br />meter and have many years experience in this field. <br />The 3" meter is being used to produce higher velocity <br />at the point of measuerement. With flow producing <br />3-10 ft/sec. velocity, the meter will read and record <br />at an accuracy of 1/20. This system will also in- <br />clude a low flow cut-off switch and electric mechanical <br />totalizer. The latter item is necessary to prevent <br />the totalizer zeroing when wehave a power failure, <br />loosing all the data accumulated or the month. <br />16 <br />