When to replace
When to replace your well water
A well pump generally lasts 8–15 years. Short-cycling and pressure problems are the usual signs the pump or pressure tank is wearing out.
- Typical lifespan
- 8–15 years
- Replacement cost
- $1,000–$3,000
Signs it's time to replace
- Fluctuating or dropping water pressure
- The pump runs constantly or short-cycles
- Sputtering air at the faucets
- Higher electric bills from constant pump operation
- The pump is past 10 years old
Extend its life
Checking the pressure tank and addressing short-cycling early prevent the pump from burning out prematurely.
Repair or replace?
When a well water is aging, the question is whether to keep repairing it or replace it. A useful rule of thumb is the 50% rule: if a repair costs more than half the price of a new unit and the well water is past the midpoint of its 8–15 year lifespan, replacement usually wins. Frequent repairs and efficiency gains push the same direction.
For the full decision framework, see our guide on whether to repair or replace major home systems.
When to replace well water: FAQ
How long does well water last?+
A well pump generally lasts 8–15 years. Short-cycling and pressure problems are the usual signs the pump or pressure tank is wearing out.
What are the signs I need to replace my well water?+
Common signs include: fluctuating or dropping water pressure; the pump runs constantly or short-cycles; sputtering air at the faucets; higher electric bills from constant pump operation.
Can I extend the life of my well water?+
Checking the pressure tank and addressing short-cycling early prevent the pump from burning out prematurely.
Should I repair or replace my well water?+
A common guideline is the 50% rule: if a repair costs more than half the price of a new unit and the well water is past the midpoint of its expected life, replacement usually makes more sense. See our full repair-or-replace framework for the details.