Liberty Pumps SJ10 SumpJet Water Powered Back-Up Pump, Gray

Electricity-free basement protection with a compact, high-efficiency design

The Liberty Pumps SJ10 SumpJet is a water-powered back-up sump pump that activates during power outages, using your municipal water supply to move sump water. It arrives fully assembled and is ready for quick installation, offering a practical safeguard for basements without relying on a traditional electrical pump.

Designed for efficiency and reliability, the SJ10 delivers notable performance without requiring an external power source. In typical scenarios, it removes about 2 gallons of sump water for every 1 gallon drawn from the water supply, based on a 5-foot lift. This compact unit combines smart engineering with durable construction to help manage sudden basements floods when the power is out.

Key benefits that align with real-world needs

• Power outage protection: operates without electricity, leveraging municipal water pressure.
• Fully automatic and assembled: drop-in ready, with minimal setup and maintenance.
• High-output flow within a compact form: designed for efficient handling of sump water.
• Wide inlet pressure range: accepts 20 psi up to 100 psi inlet supply pressure for flexible install.
• Durable materials and integrated components: PVC construction, built-in screen with removable foot valve, and a built-in check valve at the water inlet.

Important specifications at a glance

• Discharge: 1 1/2"
• Water inlet connection: 3/4" NPT
• Maximum fluid temperature: 130°F
• Construction: durable PVC
• Dimensions: 21.6" H x 5.1" W x 14.5" D
• UPC approved; adjustable stainless hose clamp for easy mounting
• Includes built-in screen and removable foot valve; backflow protection requires additional measures
• Automatic operation; comes fully assembled and backed by a standard two-year warranty

Practical use and setup guidance

Ideal for basements or spaces prone to flooding when power is unreliable, the SJ10 relies on a continuous water source to function. Plan for a reliable water supply and ensure the inlet pressure remains within the 20–100 psi range. The unit’s compact footprint and familiar mounting hardware allow for flexible placement and straightforward installation in most sump locations.

What you get and how it helps today

With a focus on ease of use and dependable operation, the SJ10 blends a compact design with robust performance. While it does not replace a primary sump pump, it offers an effective backup option that can help reduce sump water accumulation during outages, giving you one more line of defense for your home’s lowest level.