Meters measure volume
If the measured volume includes entrained air, part of the billed volume may not reflect only real productive water use.
The uploaded brief and video notes consistently point to entrained air, turbulence, and unstable volume measurement as the hidden issue.
If the measured volume includes entrained air, part of the billed volume may not reflect only real productive water use.
Pressure variation, trapped gases, and turbulence all make it harder for water systems to behave like smooth, laminar conditions.
The brief favours creating a more optimal balance between flow and pressure after the meter rather than relying on work before the meter.