Prepare for changing inflow
Surface-water systems may see rapid changes in flow during heavy rainfall. Pump capacity, available storage, level controls, discharge restrictions and standby arrangements must work together.
Typical systems
Applications include:
- Attenuation and stormwater tanks
- Car parks and access ramps
- Basements, yards and low points
- Construction and temporary dewatering
- Surface-water package stations
- Flood-control and transfer duties
Maintenance priorities
Debris, silt, seized floats, blocked inlets, failed alarms and restricted discharge paths can reduce available capacity. Planned testing should happen before the system is relied upon in severe weather.