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A well pump losing pressure, short-cycling or not running at all gets diagnosed at the pressure tank and the pump itself, repaired or replaced depending on what has actually failed.
Why does my well water pressure keep dropping and surging?
That pattern, called short-cycling, usually points to a failing pressure tank rather than the pump itself. When the tank’s air bladder loses its charge, the pump turns on and off far more often than it should, which shortens the pump’s own working life over time.
A pump that has simply lost overall pressure, rather than cycling, is more likely a wear issue with the pump itself or a problem at the well casing, both of which are checked separately during a diagnosis.
Either failure mode is worth addressing promptly, since a struggling pump tends to draw more power and wear down faster the longer it runs in a compromised state, turning a moderate repair into a full replacement if it is left alone. Confirming which pattern you are actually seeing before the visit, short-cycling or a steady pressure drop, helps narrow the likely cause ahead of time.
What we check
Each of these points to a different component, which is why diagnosis comes before any repair.
Usually a failing pressure tank bladder rather than the pump itself.
Points toward pump wear or a restriction somewhere in the system.
Could be electrical, a failed pressure switch, or the pump itself, checked in that order.
Can point to a well casing issue or changing groundwater conditions rather than the pump’s mechanical parts.
A gradual increase in cycling frequency, even without a full pressure drop, is often the earliest sign worth checking.
Local factor
Well water in South Florida behaves differently depending on how close a property sits to the coastline.
In parts of South Florida closer to the coastline, the freshwater aquifer can be affected by saltwater intrusion, which is worth factoring in when a well’s water quality or pump wear looks unusual for its age.
A private well typically falls under its own permitting and inspection process rather than the public water utility, so a pump replacement or a new well often means an extra step a city-water household never encounters.
Frequently asked
Short-cycling usually points to the tank; steady pressure loss points more toward the pump. An on-site check confirms which one.
It varies with the pump type and how hard the well works, but many submersible pumps run for a decade or more with normal maintenance.
Yes, both household and irrigation well systems are serviced.
Yes, over time. The constant cycling caused by a failed tank puts more wear on the pump’s motor than the manufacturer intends, so fixing the tank promptly protects the pump too.
A gradual decline in pressure over weeks, rather than a sudden stop, is the more common pattern -- catching it during that decline usually means a simpler repair than an emergency replacement.
Prolonged heat can affect motor components over time, similar to the strain any electrical equipment faces during a hot South Florida summer, though it is rarely the sole cause of a failure.
Related
Well systems often share a property with a few other things worth checking.
Ready when you are
There is no charge for the estimate. When a pipe will not stop, call rather than type.