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Article VIII. Other Guidelines
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In the case of in-line booster stations, the station discharge flow shall be metered with a one-way Venturi type flow meter; and in the case of booster stations with pumped storage, both influent and discharge flows shall be metered with a two-way Venturi type flow meter. The influent flow indication would be helpful in positioning inlet control valve on the fill line to the reservoir to get any desired rate of flow.

Station discharge flow indication is required at the pumping station and also at the WSSC Control Room. For transmission to the WSSC Control Room, the flow element shall be connected to a flow transmitter (nonmercury type) capable of producing a time pulse signal proportional to the flow, and compatible with the receiver.

For flow instrumentation and control requirements, see Article VII, Controls and Instrumentation. (Amended during 2019 codification; 28-ME-DG-02 § 10)