Water Powered Backup Pump

by Liberty Pumps

This Water Powered Backup Pump by Liberty is a great way to help protect your basement from the costly repairs that come as a result of water damage. A simple installation is all it takes to give yourself some peace of mind knowing that your new water powered back up pump is on the job. Protect your basement in the case of a power outage with a back up sump pump, brought to you by your source, PlumbingSupply.com®!

Water Powered Backup Pump

water powered backup pump
  • 1-1/2" Discharge
  • 3/4" NPT Water Inlet Connection
  • Accepts 20PSI up to 100PSI inlet supply pressure*

The SumpJet is a water powered back-up sump pump that will protect your basement in the case of a power outage. This unique product is powered by your municipal water supply** and requires no electricity to operate! With a compact high efficiency design, The SumpJet removes 2 gallons of sump water per 1 gallon used. The SumpJet is fully automatic, arrives completely assembled, and comes backed with Liberty's standard 3 year warranty.

* The SumpJet pumping performance varies with inlet water source pressure and pumping head. See complete specifications and performance chart for expected flow rates.

** The SumpJet requires an uninterrupted water source to operate. If you have a well pump, the SumpJet will not operate during power outages.

This water powered backup pump features:
  • Factory pre-assembled, compact design
  • Fully automatic operation
  • 1-1/2" Discharge
  • Efficient design removes 2 gallons of sump water per 1 gallon used
  • Built-in backflow prevention, eliminates potential backflow into municipal water system or flood to basement
  • Adjustable stainless hose clamp for easy mounting
  • Built-in screen with removable foot valve
  • Constructed of durable PVC
  • Maximum fluid temperature 130 degrees F
dimensions for water powered backup pump - click to enlarge
Additional Specifications:
  • Weight: 3.5 lbs.
  • Major Height: 21.6"
  • Major Width: 5.1"

Minimum recommended pit diameter is 18". The SumpJet works in conjunction with your main sump pump. Make sure you have adequate pit size to properly install the SumpJet without float interference.

Water Powered Backup Pump - $240.00

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Performance Chart

Liberty Pumps - SJ10 - performance chart

Sump Water Removal At Various Heads (static head in 1-1/4 pipe or larger)

Lift (psi) * 4 ft. (gpm) 8 ft. (gpm) 12 ft. (gpm) 15 ft. (gpm)
20 11.0 5.8 - -
30 12.8 9.0 5.5 -
40 15.4 12.5 9.3 7.2
50 17.2 14.5 12 10
60 19.8 17 15.2 13.5

* Water pressure valve at inlet with valve open and water flowing

Related Items & Information

Frequently Asked Questions

Q. "Is there anything else I should know about this back up pump?"
A. Make sure to follow all of the manufacturer's instructions and directions by performing the proper maintenance and inspections to ensure that you are fully protected from flooding - this is ever-so-important with (man-made) safety devices as they will eventually fail. Proper installation, inspections, and maintenance can go a long way toward extending the life of your pump and providing optimal flood protection.

Q. "What does 'heads' mean in terms of pump performance?"
A. Since sump pumps are used in basements or underground areas, the water must usually be pumped above ground to be disposed of properly. Generally, pump performance is measured by how many gallons of water the pump can move to a certain height. The 'head' is how high the water will be pumped. For example, using the above chart, when the water pressure is at 20 PSI this pump can pump 11 gallons of water four feet high in one minute. When the water pressure reaches 60 PSI, the pump can move 19.8 gallons of water per minute up to a height of four feet.

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