When it comes to keeping your basement dry and your plumbing flowing smoothly, two systems often come into play: sump pumps and sewage ejector pumps. While they may sound similar, they serve very different purposes. Here's a breakdown to help you understand the difference and why it matters.

What Is a Sump Pump?

A sump pump is designed to remove groundwater that collects in a sump pit, usually located in the lowest part of a basement or crawlspace. This pump activates automatically when water levels rise and sends the water away from the home, often through a discharge pipe that leads outside.

Purpose:

Prevent basement flooding

Protect foundation from water damage

Manage high water tables or heavy rains

Common in Homes With:

Basements below the water table

Poor exterior drainage

History of water intrusion

What Is a Sewage Ejector Pump?

A sewage ejector pump is used to pump out wastewater from bathrooms, laundry rooms, or other plumbing fixtures located below the main sewer or septic line. Since gravity alone can’t move waste upward, an ejector pump is installed to push it up into the main sewer system.

Purpose:

Move solid and liquid waste from basement bathrooms or laundry

Prevent sewage backups

Comply with plumbing code in finished basements

Includes a Sealed Pit: Unlike a sump pit, a sewage ejector basin must be sealed to contain odors and gases, and is connected to a vent stack.

If you’re finishing your basement or purchasing a home with plumbing below grade, make sure your system is correctly installed and maintained.