# How long does a well pump last?

> How long well pumps last in Suffolk and Hampton Roads, what wears them out (cycling, sand, dry running, surges) and the habits that help. Read the full guide.

URL: https://wellbornesuffolkwellpumprepair.com/guide/how-long-do-well-pumps-last/

Learn

Pump life depends more on how the system runs than on the brand on the motor.

There is no fixed lifespan. A submersible with a well-charged tank, a steady water level, clean water and surge protection can run for many years; the same pump short cycling, pulling sand or running dry can fail in a few. Jet pumps in damp, unheated spaces usually have shorter lives. Keeping the tank charged and the switch healthy is the cheapest way to extend any pump's life.

Key points

- Short cycling is the biggest avoidable cause of early failure.
- Sand wears impellers; running dry burns motors.
- Thunderstorm surges damage controls and motors.
- A yearly tank and gauge check costs little and protects the pump.

[Wellborne](https://wellbornesuffolkwellpumprepair.com/) is often asked how long a pump should last. The honest answer is that the system around the pump decides most of it. Two identical pumps in two Suffolk wells can have very different lives depending on how they are asked to run.

## What wears a pump out

**[Short cycling](https://wellbornesuffolkwellpumprepair.com/guide/well-pump-short-cycling/).** Every start sends several times the running current through the motor and heats its windings. A pump that starts every few seconds because its [pressure tank](https://wellbornesuffolkwellpumprepair.com/pressure-tank-replacement/) has lost its air charge can make thousands of extra starts a week. This is the most common avoidable cause of early failure.

**Sand and sediment.** Sand wears the impellers and diffusers inside the pump, cutting its output while the motor keeps running. A pump set too close to the bottom of the well, a failed screen, or a well pumped harder than its yield all bring sand with them.

**Running dry.** A submersible motor is cooled by water flowing past it. When the water level falls to the intake or a leak keeps the pump running without delivering, the motor overheats. [Jet pumps](https://wellbornesuffolkwellpumprepair.com/jet-pump-repair/) running without prime burn their seals.

**Power problems.** Thunderstorms are frequent in Hampton Roads summers, and surges travel down power lines and the well’s long cable. Low voltage, from undersized wire on a deep setting or an undersized generator, makes motors draw more current and run hot.

**Corrosive or mineral-heavy water.** Iron, iron bacteria and hard water foul intakes and valves, and aggressive water corrodes fittings and older galvanized pipe.

## Jet pumps versus submersibles

Jet pumps live above ground, often in well houses, garages and crawlspaces. They are exposed to damp, heat and occasional freezing, and their seals wear. They are also cheap and easy to replace. Submersibles live in a stable, cool environment down the well, which helps, but they work against much greater depths. In the Virginia Cooperative Extension clinic of 204 Suffolk households, 59% of owners reported wells deeper than 300 feet, so most Suffolk submersibles carry a heavy load.

## What makes a pump last

- **Keep the tank charged.** Check the air charge once a year with the system drained; it should be about 2 psi below cut-in.
- **Keep the switch healthy.** Pitted contacts and a clogged sensing port cause erratic starts.
- **Protect against surges.** A lightning arrester at the [control box](https://wellbornesuffolkwellpumprepair.com/pressure-switch-and-control-box-repair/) or panel is inexpensive insurance.
- **Set the pump correctly.** Far enough below the pumping level to avoid air, far enough above the bottom to avoid sand.
- **Do not let it run dry.** A pump running without building pressure should be switched off and checked.
- **Size it to the well.** An oversized pump draws the well down and cycles; an undersized one runs on.
- **Fix leaks.** A small leak makes the pump start more often than it needs to.

## Signs a pump is wearing out

Longer run times to reach cut-out, pressure that fades during long use, rising electric bills, and a changed amp reading compared with earlier service all point to decline. None means the pump fails tomorrow, but each is a reason to plan.

## Shallow irrigation pumps

Irrigation pumps work in short, intense seasons. They sit idle all winter, then run for hours a day in summer, often drawing iron-laden shallow water. Their seals, foot valves and impellers wear faster than a household pump’s, and a spring check before the season adds years.

## What the records tell you

Every time a pump is pulled, its setting, the water levels and the amp draw are worth writing down. A few readings over the years show whether the pump is losing output or the well is changing. Where there is no history, the [well record](https://wellbornesuffolkwellpumprepair.com/guide/buying-a-home-with-a-well-suffolk/) from the local health department is a starting point.

If your pump is showing signs of age, call [(757) 919-1972](tel:+17579191972) to talk through whether it is time.

Related service

[Well pump replacement](https://wellbornesuffolkwellpumprepair.com/well-pump-replacement/)

More guides

- [Repair or replace a well pump](https://wellbornesuffolkwellpumprepair.com/guide/repair-or-replace-well-pump/)
- [Why a well pump short cycles](https://wellbornesuffolkwellpumprepair.com/guide/well-pump-short-cycling/)
- [Sand and sediment in well water](https://wellbornesuffolkwellpumprepair.com/guide/sand-and-sediment-in-well-water/)
- [Well pump repair cost](https://wellbornesuffolkwellpumprepair.com/guide/well-pump-repair-cost/)

## Questions people ask

### How do I find out how old my pump is?

Check the well record, old invoices or a tag at the wellhead or control box. The pump's own nameplate is only visible when it is pulled. A previous owner or the original installer may know.

### Should I replace an old pump before it fails?

Not just because of age. If it reaches pressure normally and its amp draw is steady, it can keep running. If it is showing decline, planning a replacement avoids an emergency at a bad time.

### Do constant pressure systems make pumps last longer?

They can reduce wear by ending hard starts and short cycling, but they add electronics that need protecting from surges and heat. They are a trade-off, not a promise of longer life.
