Examples
Examples
Try the starting example
- Sump operating storage (litres)
- 100
- Constant inflow (litres/min)
- 10
- Pump discharge when on (litres/min)
- 40
- Fill time (minutes)
- 10
- Pump-down time (minutes)
- 3.333333
- Cycles per hour (count/hour)
- 4.5
Try another scenario
- Sump operating storage (litres)
- 101
- Constant inflow (litres/min)
- 10
- Pump discharge when on (litres/min)
- 40
- Fill time (minutes)
- 10.1
- Pump-down time (minutes)
- 3.366667
- Cycles per hour (count/hour)
- 4.455446
Calculation method
Calculation method
Fill time (minutes)
Pump off: storage/inflow; pump on: storage/(discharge−inflow); steady constant flows only.
Pump-down time (minutes)
Pump off: storage/inflow; pump on: storage/(discharge−inflow); steady constant flows only.
Cycles per hour (count/hour)
Pump off: storage/inflow; pump on: storage/(discharge−inflow); steady constant flows only.
Symbols and units
- a
- Sump operating storage (litres)
- b
- Constant inflow (litres/min)
- c
- Pump discharge when on (litres/min)
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
- User-supplied measurements and assumptions; Pump off: storage/inflow; pump on: storage/(discharge−inflow); steady constant flows only. Supported limits: Finite numeric values bounded to 1e9 magnitude; lists and tables contain 1–100 records unless a stricter bound is stated. Inputs use the units shown. Lists explicitly paired by a method must have matching lengths; independent polynomial coefficient vectors may differ. Respect stated physical, interpolation, policy and computational domain limits.
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.