How Long Does a Well Pump Last? | Deep Dive Plumbing Maryland
How Long Does a Well Pump Last?
A submersible well pump typically lasts 8–15 years with proper maintenance. Jet pumps last 10–15 years. In Calvert and Anne Arundel County, where iron and low pH are common, pumps on the lower end of that range are typical without water treatment.
Lifespan by Pump Type
Submersible Pump
8–15 years
Most common in Southern Maryland
Jet Pump (shallow)
10–15 years
Above-ground, easier to service
Constant Pressure Pump
10–15 years
Variable speed — less wear
Pump with Pump Saver
Up to 20 years
Dry-run & voltage protection
What Shortens a Well Pump's Life
Short-cycling
Pump turns on/off too frequently due to a waterlogged pressure tank. The most common cause of premature pump failure.
Running dry
Low-yield wells or drought conditions cause the pump to run without water — burns out the motor fast.
High iron or sediment
Abrasive particles wear pump impellers. Common in Calvert County well water.
Acidic water (low pH)
Corrodes pump components and wiring. Anne Arundel County wells frequently test below 7.0 pH.
Voltage fluctuations
Power surges and brownouts stress the motor. A pump saver device protects against this.
Signs Your Well Pump Needs Replacing
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