Wells are the norm outside town
A large share of homes in rural Washington, Sullivan and Carter counties — Piney Flats, Telford, the ridgelines and hollows — draw water from private wells. Tennessee licenses well drillers and pump installers through TDEC's water well program, which also sets well construction standards. If your home is on a well, the pump, pressure tank and switch are the heart of the plumbing — and they fail differently than city plumbing.
No water at all
Work through these in order:
- Check the breaker. Well pumps pull serious current; a tripped breaker is the most common no-water cause. Reset once. If it trips again, stop — the pump or its wiring has a fault.
- Check the pressure switch. A small box near the tank with a cover; the contacts inside can burn or the tube can clog. Tapping the gauge is a folk fix, not a repair.
- Listen at the well. A pump that runs constantly and produces no water may have lost its prime (jet pumps) or be pumping against a broken line. A pump that never runs may have an electrical fault.
- Look for a leak between well and house. In winter especially, a burst line at the wellhead or in the yard takes everything with it.
No water anywhere in the house has other causes too — the no-water-in-house guide covers the full checklist. But on a well property, the pump is the first suspect.
Pressure that surges and drops
Pressure that cycles — strong, then weak, then strong — usually means the pressure tank has lost its air charge and is waterlogged. The tank's job is to hold a cushion of pressurized air above the water so the pump doesn't have to start every time a faucet opens. When the cushion is gone, the pump short-cycles: you hear it kick on and off every few seconds, lights may dim with each start, and the pump wears out early. The fix is often as simple as recharging or replacing the tank, and it's far cheaper than the pump it saves. A faulty pressure switch produces similar symptoms and is also an inexpensive part.
Other well-side symptoms
- Cloudy, sandy or gritty water: a failing pump stirring sediment, a damaged well screen, or a dropped drop-pipe. Sudden sand after years of clear water is a pump-mechanics symptom, not a water-quality curiosity.
- Spitting faucets: air in the lines, from a falling water table, a leaking drop pipe or a bad check valve.
- Milky water that clears from the bottom up: just dissolved air, generally harmless — cloudy water that never clears, or that's cloudy with particles, is the kind worth testing.
- Weak flow everywhere: partly clogged drop pipe or fittings, a worn pump, or a pressure-tank problem. (Weak flow on city water has different causes — see the low water pressure page.)
How long pumps last, and maintenance
A well pump typically serves for many years, but its life depends on how often it cycles — which is exactly why a healthy pressure tank matters. What actually preserves a well system: fixing short-cycling immediately, keeping the wellhead cap sealed and above grade, and not piling snow, mulch or equipment against the wellhead. Annual water testing is the other habit that matters: the EPA advises private-well owners to test yearly for total coliform bacteria, nitrates, total dissolved solids and pH, and again any time the well is serviced, flooding reaches the wellhead, or the water changes taste, color or smell. Your county health department can point you to certified labs.
What the repair involves
The plumber or pump installer verifies power, tests the pressure switch and tank charge, and checks flow at the wellhead — most pressure-switch, tank and above-ground work can be done without pulling the pump. If the pump itself is a submersible down the well, it has to be pulled: the drop pipe and wiring come up from the casing, which is a bigger job needing the wellhead cleared and, often, a second set of hands. Tennessee licenses pump installers alongside drillers, so it's fair to ask for license and insurance on any well work.
What affects the price
Which part failed (switch and tank versus the pump itself), how deep the well is and how hard the pump is to pull, wellhead access, and whether winter freeze damage is in the picture. Diagnosis comes before any price: on a well, the difference between a breaker reset and a pulled pump is worth checking in order. No figures here are quotes — get the diagnosis, then the price in writing.
Before you call
Note whether the pump runs at all and whether it short-cycles; check the breaker; and mention you're on a well when you call so you're routed to a plumber who works on them. Rural calls are routine here — see the Piney Flats page for an example of well country we serve.