Examples
Examples
Try the starting example
- Zones: name, measured emitter flow L/h, emitter count, run minutes
- A,2,100,30 B,1.5,100,40
- Applied water by zone (L)
- A: 100; B: 100
- Total applied water (L)
- 200
- Highest-to-lowest measured emitter-flow ratio
- 1.333333
- Mean measured flow weighted by emitter count (L/h)
- 1.75
Try another scenario
- Zones: name, measured emitter flow L/h, emitter count, run minutes
- A,2,10,60 B,1,20,30
- Applied water by zone (L)
- A: 20; B: 10
- Total applied water (L)
- 30
- Highest-to-lowest measured emitter-flow ratio
- 2
- Mean measured flow weighted by emitter count (L/h)
- 1.333333
Calculation method
Calculation method
Applied water by zone (L)
Supplied representative emitter flow × count × runtime / 60.
Total applied water (L)
Sum zone deliveries.
Highest-to-lowest measured emitter-flow ratio
Largest supplied positive flow / smallest supplied positive flow.
Mean measured flow weighted by emitter count (L/h)
Sum(flow × emitter count) / total emitter count.
Symbols and units
- a
- Zones: name, measured emitter flow L/h, emitter count, run minutes
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Compares measured zone flows; it does not infer pressure, pipe losses or a pressure-compensation curve. The representative per-emitter flow must be supplied for each zone.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
OpenStax: arithmetic and geometry ↗
Background reading; this does not imply endorsement or independent review of SumFizz.