- Check the suction strainer daily — a blocked strainer starves the pump and kills priming.
- Watch the engine oil and coolant on diesel units; long dewatering runs are continuous-duty.
- Inspect the mechanical seal for weeping — early replacement prevents bearing failure.
- Keep the discharge line short and straight to minimise friction head.
- Log running hours and service to schedule, not to failure.
A small maintenance routine is the cheapest insurance against unplanned downtime on a critical dewatering job.