Large water meters : guidelines for selection, testing, and maintenance
Jeffcoate, Philip | Pond, Roy
These guidelines explain how water utilities can achieve a good accounting of water production and consumption through the use of large meters. They are especially useful for managers interested in the accurate measurement of water production and distribution in various parts of their pipe networks. About half of the revenues of a typical water supply entity come from sales through large meters. Sometimes these meters are poorly selected or improperly installed, resulting in under-registration and a consequent loss of revenues. These guidelines are meant to provide an easy-to-follow methodology for selecting the correct design for the range of flows to be measured, and for the correct installation and subseqent calibration of large meters. District meters, used particularly in assessing unaccounted for water, are similar to source meters, except that their sizing and location are more complex. The report also provides information on the models that are now in use. It also contains important suggestions on institutional arrangements, organization, manpower and training needs. The methodology for maintaining each kind of meter is dealt with in sufficient detail that a distribution manager can design and implement a meter maintenance system.
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