What Happens to a Sump Pump When the Power Goes Out?

What To Do When the Power Goes Out

A standard sump pump relies on electricity to run. So, if the power goes out, what happens to your sump pump? It stops, and so does your protection, often during a major storm when groundwater levels are at their highest.

There is a reliable way to run a sump pump without power, but it has to be built into your system in advance. If you’re wondering how to keep your sump pump running during a power outage or how to run a sump pump without electricity, the answer depends on how the system is set up.

How Do You Keep a Sump Pump Running During a Power Outage?

Primary sump pumps in New Jersey homes run on the home’s electrical system. When water enters the basin, the pump activates and moves that water out through the discharge line. To keep your sump pump running during a power outage, you need to install a battery backup system.

This is a necessary part of a reliable sump pump setup, especially in New Jersey, where storms, high groundwater, and outages often occur together.

A sump pump battery backup system includes two critical components:

• A heavy-duty secondary sump pump, which is installed alongside the primary pump in the basin
• A heavy-duty battery that powers the secondary pump when the main electrical supply is cut off

A properly installed battery backup system allows the sump pump to continue operating during outages without manual intervention. When the power goes out, the secondary pump automatically takes over and continues moving water away from the foundation.

It’s More Than Just Power Failure

A battery backup sump pump protects against more than just power outages. In New Jersey homes, sump pump systems can fail in several ways, especially during storms or high water events. A backup sump pump system is designed to cover those gaps and keep water moving out of the basement.

A backup pump protects against three primary failure points:

• Power outages: When the power goes out, the battery system continues operating the pump during heavy rain or rising groundwater
• Circuit trips or disconnection: If the breaker trips or the system becomes unplugged, the backup activates automatically
• Primary pump failure: If the main pump burns out or cannot keep up with water volume, the secondary pump takes over to prevent flooding

Even with high-performance pumps, these risks still exist. That’s why a backup system is an essential part of a reliable sump pump setup.

The Cost of a Sump Pump Backup System

The cost to install a sump pump with a full battery backup system typically ranges from $1,500 to $2,000, depending on the size and setup.

In New Jersey, we’ve seen systems fail during a single storm due to a power outage. When that happens, the cost of cleanup (including damaged flooring, drywall, stored belongings, and potential mold) adds up quickly. Compared to the cost of repairing a flooded basement, a battery backup system is a straightforward investment that protects the home when the primary system cannot operate.

Keep Your Sump Pump Running During a Power Outage

If your sump pump does not have a battery backup, it is not protected during a power outage.

Blue Umbrella Waterproofing installs sump pump systems with battery backup for New Jersey homes, designed to keep water moving even when the primary system loses power. Every system is built around how water enters your foundation and is designed to handle real-world storm conditions.

Our sump pump backup services include:

• Full system inspection to identify risks during power loss
• Installation of a secondary sump pump and battery backup system
• Integration with your existing drainage system for continuous operation
• Testing and setup to ensure automatic activation during outages

A sump pump system is only as reliable as its backup. Without one, the system has a single point of failure. Schedule an inspection with Blue Umbrella to ensure your sump pump is ready for the next New Jersey storm.