Our service team sees hundreds of pumps a year, and the failures cluster into a remarkably short list. Most premature deaths are not bad luck or bad pumps; they are one of five avoidable mistakes.
1. Never checking the pressure vessel's air charge
The most common of all. The cushion leaks away slowly, the pump begins short-cycling, and nobody notices until the motor burns out. A two-minute check once a year prevents it.
2. Letting it run dry "just once"
A dry run scores a mechanical seal in seconds and overheats a submersible in minutes. Every pump that can conceivably run dry needs protection, because conceivably becomes eventually.
3. Ignoring the strainers
A blinding foot valve or suction screen starves the pump slowly. Performance fades, the pump works harder for less, and cavitation starts eating the impeller while everything still looks fine from outside.
4. Throttling the suction line
To reduce flow, close the discharge valve, never the suction. Choking the inlet is cavitation on demand, yet it remains a routine find on service calls.
5. Treating noise as background
New rattles, grinding, a hum that changed pitch: pumps announce their illnesses audibly, weeks in advance. The cheap repair window closes quietly while everyone gets used to the sound.
None of these need an engineer, only a calendar and twenty minutes a season. The pumps that reach twenty years are almost never the luckiest; they are the ones somebody listened to.