Short-cycling and a waterlogged tank are usually a tank problem, not a pump problem, and a much cheaper fix. Here's the real check that tells the difference, and what a straight tank swap involves.
The pressure tank isn't just a holding container. It protects the pump from switching on and off constantly, stores a reserve of water, and smooths out pressure swings between pump cycles. When the tank's air charge is gone (waterlogged), the pump loses that buffer and takes the abuse the tank was supposed to absorb, which is why a bad tank can look like a failing pump if nobody checks it first.
Shut off power to the pump and open a faucet until the pressure clears. Then check the tank's air charge with a tire-pressure gauge at the valve stem on top of the tank. The reading should sit close to the pressure switch's cut-in setting (commonly 30 to 50 PSI) minus about 2 PSI. Read low, and the tank needs its air charge restored or the tank itself needs replacing.
A price based on what was actually found, not a phone guess. If the tank is the fix, that's a different number than a pump replacement, and a much smaller one.
Old tank out, new tank set and charged to the correct pressure, system tested under normal use before anyone leaves.
Steady pressure and normal cycling confirmed, not just "it's running."
A waterlogged tank and a failing pump can look identical from inside the house: pressure that surges, drops, or a pump that seems to run constantly. The tire-gauge check is what actually separates them. Skipping it is how homeowners end up paying for a full pump replacement when a tank was the real problem.
no standalone local price sourced yet; tank work is typically bundled with a pump visit, ask for the with-and-without price
The reliable check is a tire-pressure gauge at the tank's valve stem, with the power off and pressure relieved at a faucet first. A reading well under the pressure switch's cut-in setting means the tank's air charge is gone. Short-cycling (the pump kicking on and off every few seconds) is the symptom that should send you to this check.
Sometimes. If the tank still holds air and just needs its charge restored, that's a cheaper fix than a full tank swap. If the tank itself is old, rusted, or has failed internally, recharging won't hold and replacement is the honest answer. The tire-gauge check plus a look at the tank's condition tells you which one you're in.
It needs to match your system's pressure switch settings and household demand, not necessarily the exact old model. A written quote should specify the replacement tank's size and pressure rating so you know what you're getting, not just "a new tank."
If the tank is the actual cause, yes. If low pressure is coming from somewhere else (the pump, a leak, or low water in the well itself), a new tank won't fix it. That's why the tire-gauge check happens before any replacement gets recommended, not after.
There isn't a local standalone price sourced for tank-only work yet. Tank replacement is usually bundled with a pump service visit rather than priced on its own, and the honest move is asking for the with-and-without-tank price on any quote so you can see the difference. See the full pump cost breakdown for what does have a sourced local range.
Most residential systems run a pressure switch set to 30 to 50 PSI or 40 to 60 PSI, cutting the pump on at the lower number and off at the higher one. The tank's air charge should sit a couple PSI under whatever the cut-in setting actually is on your system, not a fixed number that applies to every house. If you don't know your system's cut-in setting, that's worth confirming before assuming a gauge reading is wrong.
There's no published lifespan figure we're willing to put a number on here, same as with pumps. Age matters less than condition: a tank that holds its charge, isn't rusted through, and passes the tire-gauge check is doing its job regardless of how many years it's been in place. When it stops holding charge reliably, that's the signal, not a calendar date.
Well Pump Repair for Plymouth and Plymouth County. When the water stops, start here.
(508) 905-6197