Rate of Under-Registration Due to Failures of Large Metersby Namsik Park,
J. H. Yoon,
C. S. Choi,
H. Y. Kim,
Abstract: Leaks and meter under registrations are suspected as primary components of unaccounted-for water in Korea. In 2001, national unaccounted-for-water rate is reported as 26.6%. More than one third of the unaccounted-for water is believed to be due to meter under registration. Data from seven metropolis and nine provinces vary widely: ranging from less than 3% to over 14%. However, the values never have been substantiated. The City of Seoul conducted an in-situ meter inaccuracy test for 175 13mm meters in 2000. Calibrated meters were installed in series with existing meters. Comparisons between readings of calibrated meters and of existing meters revealed that the average error of existing meters was 1.23%. There is a big difference between the national average and the test result.
Subject Headings: Failure analysis | Calibration | Field tests | Water meters | Comparative studies | Urban areas | Leakage | Asia | South Korea | Seoul
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