Sump Pump Maintenance and Backup Power

A functioning sump pump is your first line of defense against basement flooding. When it fails during a storm—often when power goes out—the results can be devastating. Here's how to keep yours reliable.

Regular Maintenance

Test your sump pump monthly by pouring water into the pit until the pump activates. Clean the intake screen quarterly and inspect the discharge pipe for obstructions. Check that the float switch moves freely.

Backup Power Options

Battery backup systems provide hours of operation during power outages. Water-powered backups use municipal water pressure and work without electricity. For extended outages, consider a generator dedicated to critical systems.

Redundancy

Consider installing a secondary pump—either a battery backup unit or a second primary pump—for properties in high flood-risk areas. Stagger the float switch heights so the backup activates if the primary fails.

When to Replace

Replace your sump pump every 7–10 years, or sooner if you notice unusual noises, frequent cycling, or reduced performance. Document maintenance and replacement dates for insurance purposes.