7 signs your sump pump is failing (test it before spring does).

Here are the 7 signs in one breath: the pump is past 7 years old, it's making noises it didn't make before, it's short cycling, there's visible rust or silt on it, it runs without moving water, it hasn't run in longer than you can remember, or it has a history of tripping the breaker. Any one of those is worth taking seriously in February, because the southeast Michigan thaw is about six weeks out and it doesn't reschedule.

We've replaced a lot of sump pumps around Milford since 1979, and the ones that cause real damage almost never die without warning. They die without anyone listening. Right now, in the dead of winter, your pump is sitting quiet, and the snow above it is the water it'll be fighting in March. Heavy clay soil holds that meltwater against your foundation and feeds it straight to the pit. This is the right month to find out whether your pump is up to it.

The seven signs

1. It's past 7 years old

Sump pumps last about 7 to 10 years. That's not a sales line, it's just what motors and switches do when they live in a hole full of water. If you can't remember when it went in, check the date code on the pump or your records, because around here, a pump in a wet lot near the lakes in Milford or White Lake works harder and ages faster than the calendar suggests.

2. New noises

A healthy pump hums steadily and shuts off cleanly. Grinding usually means a damaged or jammed impeller. Rattling can mean a bent shaft or a part working loose. A loud bang or thud at shutoff can be a failing check valve. None of those sounds get better on their own.

3. Short cycling

On, off, on again a minute later, over and over. Sometimes it's a float problem, sometimes a check valve letting water fall back into the pit, sometimes a pump too small for the inflow. We broke down all four causes in our post on why a sump pump runs constantly. Whatever the cause, short cycling chews up motors fast.

4. Visible rust or silt

Shine a light into the pit. Heavy rust on the housing, silt caked around the intake, or corrosion creeping along the float arm all mean the pump's working environment is eating it. Rust on the outside usually has a head start on the inside.

5. It runs but moves no water

You can hear the motor, but the pit level doesn't drop. That's a clogged or damaged impeller, a blocked discharge line, or a motor that's lost its strength. In winter, check the discharge outlet outside first; a line frozen shut will make a healthy pump look dead, and it'll burn the pump out if it stays that way.

6. It hasn't run in memory

This one fools people. A quiet pump feels like good news, but a pump that's sat dry since October can have a seized motor or a stuck switch, and you won't know until the meltwater arrives. Silence isn't health. It's just silence.

7. A history of tripped breakers

If the pump's circuit has tripped more than once, the motor is likely drawing more current than it should, which is what failing motors do. Resetting the breaker treats the symptom. The third trip tends to happen during a storm, with the pit full.

What to do about it in February

Test it now, while the ground is still frozen and the stakes are low. Pour about 5 gallons of water into the pit and watch: the pump should start within a few seconds, empty the pit, and shut off cleanly, with one solid clunk from the check valve. That's the bucket test, and it's the heart of our full Michigan sump pump checklist if you want the 10 minute version.

If the pump passes but it's showing sign 1 or sign 4, you're in planning territory, not panic territory. A replacement scheduled in February happens on your terms. The same replacement in late March happens during the busiest sump pump weeks of the year, possibly with water already on the floor. Our sump pump service page covers replacements and battery backups, which are worth considering at the same time since spring storms here like to take the power out on their way through.

Quick answers

How long do sump pumps last?

About 7 to 10 years in southeast Michigan. Pumps in high water table areas that cycle often wear out at the early end. Past year 7, treat every spring as a question mark and test before the thaw.

How do I test my sump pump?

Pour about 5 gallons of water into the pit. The pump should start within a few seconds, empty the pit, and shut off cleanly. Listen for grinding or rattling, watch that the float moves freely, and listen for one solid clunk from the check valve when it stops.

Should I replace a sump pump before it fails?

If it's showing any of the 7 signs and it's past 7 years old, yes. A planned replacement in February happens on your schedule. A failed pump picks its moment, and around here that's usually the March thaw or an April storm.

Countryside Plumbing is a licensed master plumber serving Milford, Novi, Farmington Hills, and southeast Michigan since 1979. Sump pump service is one of our specialties. Free quotes at 248-705-7543.