Pump lower threshold (Water Overlay)

Icon	Key	Unit	Range	Description	Default value
	LOWER_THRESHOLD	m + datum		The threshold of the lower end-point of the pump. Water flows from the lower end-point to the higher end-point until the water level at the lower end-point has reached the threshold. If not selected, the Lower Threshold will be ignored as a mechanic.	None

This attribute can be defined as values over time, using an array of values defining interpolation-time. This allows users to more dynamically define the target water level this pump maintains.

Notes

• When the PUMP_Q of the pump is positive, the pump will not pump if the water level is lower than or equal to the lower threshold. If the PUMP_Q is negative, the pump will not pump if the water level is higher than or equal to the lower threshold.
• When using a dynamic LOWER_THRESHOLD, a maximum of 10.000 values (5.000 pairs) can be defined.

See also

• Inlet lower threshold
• Inlet upper threshold
• Pump upper threshold

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Water Module

Water Module

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Hydraulic structures

Inlet

Inlet q • Inlet area • Inlet capacity •  Lower threshold •  Upper threshold • Inlet underground

Pump

Pump q •  Lower threshold •  Upper threshold • Pump angle • Pump capacity • Pump area

Culvert

Culvert diameter • Culvert rectangular height • Culvert threshold • Culvert n

Weir

Weir height • Weir width • Weir angle • Weir coefficient • Weir target level

Sewer overflow

Sewer overflow • Sewer overflow speed

Drainage

Drainage q • Drainage datum • Drainage active • Drainage overflow threshold

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Object flow output • Object height output • Object datum output a • Object datum output b • Object width output

Related

Building attributes • Hydrological features •  Terrain attributes • Model attributes • Results • Simulation data