How to Tell If Your Well Pump Is Failing (Before You Lose Water)

Two hundred gallons. That is roughly how much water a typical household burns through on a normal weekday, and every drop of it passes through one pump sitting in a hole behind your house. When that pump quits, you do not get a slow decline you can plan around. You get a faucet that hisses and stops.

Most well owners have never seen their pump. It lives underground, it hums along for years, and it only enters your life on the worst possible morning. That is backwards. A failing pump almost always telegraphs the problem weeks ahead of time, and the signals are sitting right there in your shower pressure and your electric bill.

Here is the plan. You will get six warning signs worth watching, a pressure tank test you can run in ten minutes with a tire gauge, and a straight answer on when a repair is still the smart money and when you are just paying to postpone the inevitable. If your pump dies outright, well pump repair is a job for someone with a truck full of pull rope and a torque wrench, not a weekend project, because the actual pump is often sitting a hundred feet or more below the surface.

Six Signs Your Pump Is Telling You Something

I have talked to enough homeowners to know the pattern. People notice one weird thing, decide it is nothing, and then three weeks later they are filling buckets at a neighbor’s spigot. Watch for these instead.

• Spitting faucets. Air in your lines means the pump is drawing air somewhere, either because the water level dropped below the intake or a check valve gave up. This one gets worse fast.
• Pressure that surges. If your shower goes strong, weak, strong, weak on a loop, your pressure switch is cycling because the tank cannot hold its air charge.
• Sand or grit at the tap. Sediment means the pump is sitting too close to the bottom, or the screen is failing. Grit also chews up your fixtures, so do not wait on this one.
• A pump that runs constantly. You should hear it kick on, fill, and shut off. Constant running is the classic sign of a worn impeller.
• Brown or cloudy water. Rust-colored water usually means corroded pipes or a failing pump housing, which is worth knowing a year early.
• A breaker that keeps tripping. A failing motor pulls more current than it should. That is your electrical panel waving a flag at you.

Any one of these alone is a yellow light. Two together, and you should be scheduling a service call this week rather than next month. I would personally treat tripping breakers as the most urgent, since a motor pulling excess current is the version of this problem that can end in a fire rather than a dry faucet.

What Else Causes Low Water Pressure?

Here is where a lot of people waste money. They assume pump failure and pay for a pump, when the real culprit was three feet of plumbing they could have fixed themselves.

A clogged sediment filter is the most common false alarm. Change it and see. A failing pressure switch, a waterlogged pressure tank, or a partially closed valve on the line will all mimic a dying pump. Even a voltage sag on a long run from the panel can make a healthy pump act tired.

Run the list before you call anybody. A well company that guesses wrong charges you for a diagnosis and a part you did not need. Most of them know that and will test first, which is a good sign you hired the right one.

The Ten Minute Pressure Tank Test

This is the one most helpful thing a homeowner can do and is quicker than making coffee.

Hayez the pressure tank which is normally a blue or gray cylinder near the water line coming to the house.

Turn the pump off at the breaker when working to prevent it from turning on.

Drain the tank by using a fixed nook faucet connected to it, and allowing the water to flow out until it stops running.

Remove the plastic cap from the air valve at the top of the tank (the cap resembles the tip of a tire).

Gently press tire gauge against it. If a tank was emptied it will read close to zero or squirt water at you.

Water must be coming from that valve, which means the tank has failed. This test is more beneficial prior to assuming the worst–replacing a pressure tank is much cheaper than replacing a pump. A healthy tank will be at the same level of air charge as the cut in point of the switch he is just using, typically somewhere between the number stamped inside the switch cover.

Repair or Replace? Read the Age First

Every well pump has a lifespan, and it is not infinite. According to the Department of Energy, a well pump that cycles constantly wears faster and uses more electricity, which is a utility bill problem as much as a plumbing one.

The decision usually comes down to four things, and I would weigh them in this order.

A $400 switch or tank fix on a 10-year-old pump is money well spent. Dropping a thousand dollars into the motor of a 15-year-old pump is not, and I would tell a friend to spend the extra now rather than pay twice inside two years. Pulling a pump is the expensive part of the job, so doing it once beats doing it twice.

Protecting the Water You Pull Up

If you drink from a private well, the pump is only half the system. The other half is what is in the water.

The Environmental Protection Agency maintains private well standards that are separate from public water rules, which means testing is on you and nobody is going to remind you. Test annually for bacteria and nitrates, and more often if you notice a change in taste. A pump repair is a fine moment to test, since the crew is already on site and the system is already open.

When to Call Someone Today

Two situations skip the watchful waiting. No water at all, obviously. And the Centers for Disease Control and Prevention notes that contaminated water can carry bacteria that make people sick, so if your water suddenly looks or smells wrong, treat it as urgent rather than a curiosity.

Otherwise, use your judgment and the signs above. Water pressure problems rarely fix themselves, and they never get cheaper.

Take the ten minutes and test your pressure tank this weekend. If it passes, you bought yourself peace of mind for free. If it fails, you just found the problem before it found you.