Water Meter Sizing from Peak Demand
Adequate/undersized verdict, percent of the meter's normal-flow rating used, and the headroom. Per AWWA M22 and the C700-series; meter flow ranges are user-supplied for the candidate size.
Formula and source
Adequate if peak demand <= the meter's normal-flow rating at the available pressure loss; percent used = peak / normal x 100; headroom = normal - peak; flag if peak exceeds the peak-flow rating.
AWWA M22 (Sizing Water Service Lines and Meters) and the AWWA C700-series meter standards, by name.
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