Basement Sentry

Buying Guide: Backup Sump Pumps

Battery Backup Pumps and Systems
The STBB100 is a 1200 GPH backup pump with a vertical float switch that installs in a sump basin alongside a 115V primary sump pump, which is not included. It works with a deep-cycle battery, and Basement Sentry brand batteries are recommended. The STBC101 is a pre-assembled 1/3 HP AC battery backup system rated at 2400 GPH that replaces an existing primary sump pump.

WiFi Monitoring Model
The STBB200 is a 2580 GPH battery backup pump with self-testing and 24/7 real-time monitoring of the pump and battery. It sends status alerts by text, email or app, and its indicator lights show whether the pump is running or needs attention.

Diaphragm Switch Pump
The STWB140 is a 1200 GPH AC submersible backup pump with a diaphragm switch. It can be mounted vertically in a sump basin or horizontally in rafters, uses water only when needed and activates on its own in an emergency.

Frequently Asked Questions

What does Basement Sentry make?
Basement Sentry makes backup sump pumps for basements, including battery backup pumps, a complete AC battery backup system, a WiFi-enabled self-testing pump with app alerts and an AC submersible diaphragm switch pump.

How do I choose the right backup sump pump?
Start by checking whether you already have a primary sump pump. The STBB100 needs a separate 115V primary pump, while the STBC101 replaces one. Compare the GPH rating and whether you want battery power, AC power or WiFi alerts, and match the size on your old part or the one in your sump basin before ordering.

Do I need a separate primary pump?
The STBB100 is installed alongside a 115V primary sump pump, which is not included. The STBC101 is a complete system that replaces the primary pump, and the STWB140 is an AC submersible backup pump. Check your sump basin and existing equipment before you buy.