Your sump pump sits quietly in a pit in the basement for years at a time. You don't think about it — until it fails during a storm and you're standing in six inches of water in your finished basement. Regular maintenance doesn't prevent every failure, but it catches most of them before they cost you.
Annual Maintenance Checklist
Once a year — pick a date and put it on the calendar — do this:
- Pour a bucket of water into the sump pit. The pump should activate within a few seconds, pump the water out, and shut off cleanly. If the float sticks, the pump hums but doesn't pump, or the cycle sounds different than usual, you've caught a problem before a storm did.
- Listen to the discharge. Water should flow freely out the discharge line and exit wherever your line terminates (usually the yard or a storm drain). If you hear gurgling, air locks, or nothing at all, the check valve or discharge line may be failing.
- Check the check valve. The check valve is the round fitting on the discharge pipe that prevents water from flowing back into the pit. If it's leaking or making a loud "clunk" on each cycle, it needs replacement.
- Clean the pit. Shut off power to the pump. Remove any debris — leaves, dirt, small gravel — that has settled in the pit. A clogged inlet is the #1 cause of sump pump failure.
- Check the float and activation mechanism. With power off, lift the float manually. It should move freely. A float that catches on the wall of the pit or the discharge pipe will jam at the worst possible moment.
- Test the backup system, if you have one. Battery backups need to be tested annually — unplug the primary and pour water in the pit. The backup should take over. If the battery is more than 5 years old, replace it proactively.
Warning Signs a Pump Is Failing
- Cycling on and off frequently even when it's not raining
- Running for long stretches without the pit actually draining
- Grinding, squealing, or rattling sounds
- Visible rust inside the pit or on the pump housing
- The pump is 7+ years old and has never been replaced
When to Call a Plumber
If annual testing reveals a problem, if the pump is older than 7 years, or if you're nervous about basement flooding and want to add a battery backup, call a licensed plumber. JD's Plumbing installs and services sump pumps across Avon and Greater Cleveland — call (440) 455-9625 or learn more about our sump pump services.