30+ Years Protecting Basements
The Basement Watchdog has been protecting homes for over 30 years and continues to be a market leader. We build the most dependable, user-friendly pumps in the industry using intelligent design, premium components, and quality manufacturing practices that include thoroughly testing every single unit.
Built to Last
The Basement Watchdog SI series of sump pumps (Models SI-33V, SI-50V) feature an energy-saving, Permanent Split Capacitor (PSC) motor that has carbon/ceramic shaft seals and thermal protection to safeguard the motor. The upper and lower ball bearings ensure the pump runs quietly and extend its life.
Rugged Construction
The Basement Watchdog SI series of sump pumps (Models SI-33V, SI-50V) are formed out of solid cast iron with stainless-steel fasteners. To prevent airlock and make installation easier, they also include a built-in weephole. The built-in strainer can pass ½" solids, which allows it to function as both a sump and effluent pump.
Energy-Efficient Operation
The sump pumps in the Basement Watchdog SI series (Models SI-33V, SI-50V) save you money on your electric bills and reduce their effect on the environment. The SI sump pumps are engineered with eco-friendly PSC motors and dual ball bearings that together deliver industry-leading energy efficiency and savings.
Pro-Grade Vertical Switch
The Basement Watchdog SI sump pumps (Models SI-33V, SI-50V) feature a professional-grade, built-in vertical switch for years of reliable operation in sump or effluent applications.
Pumping Power
The ⅓ HP model (SI-33V) in the Basement Watchdog Professional SI series of sump pumps moves a substantial 4,000 GPH at a 0' height (3,200 GPH at a 10' height), and the ½ HP model (SI-50V) handles 4,300 GPH at a 0' height (3,600 GPH at a 10' height).
Superior Service
The Basement Watchdog industry-leading service department, located here in the U.S., is staffed by a team of experts who can help you through the installation process for your Basement Watchdog pump. Our top priority is to provide you with the best customer experience anywhere, and we offer free lifetime support.
Why the SI Sump Pump
The Basement Watchdog Professional SI series of sump pumps comes in a ⅓ HP (SI-33V) and ½ HP (SI-50V) model with a built-in strainer that can pass up to ½" solids, allowing the pump to do double duty as a sump and effluent pump. It includes an integrated, contractor-grade, vertical float switch for reliable activation. The SI pumps are tough, versatile and can pump whatever comes their way.