First, diagnose
On Ann Arbor's hillier lots, pump placement and discharge routing matter as much as horsepower, since water has to travel somewhere once it leaves the pit.
The full scope
- Horsepower suited to glacial-till inflow
- Backup battery for outage-prone storms
- Discharge routed downhill, away from the house
- Failure alarm as standard, not optional
- Check valve and pit liner quality
Worth noting locally
On sloped Ann Arbor lots, discharge routing can matter as much as pump horsepower, since water has to go somewhere once it leaves the pit.