SumpJet® Water Powered Backup Emergency Sump Pump
- Sump Pump
A backup, not a replacement, best paired with an existing electric sump pump rather than bought as your only pump.
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How it ranks among the 10 sump pumps we track
4.6★ across 1,300 Amazon ratings, Bayesian-smoothed toward the category average.
1,300 Amazon ratings, weighted on a log scale so huge counts don't drown everything.
200+ bought on Amazon last month.
Brand identity, imagery, description and spec coverage.
The ProductDome score is separate from the Amazon rating shown above: it combines the Bayesian-smoothed Amazon rating with evidence volume, tracked demand, and data quality across the 10 sump pumps we track - how the scorecard works · full sump pumps data report. Confidence: limited - incomplete product information.Updated 7 days ago. Data-computed, not a hands-on test. Compiled by the ProductDome Research Team.
Overview
The SumpJet is a water powered backup sump pump from Liberty Pumps that runs off household water pressure instead of electricity, intended as an emergency backup rather than a primary pump.
Because it draws its power from the home's water supply line rather than a battery or the electrical grid, it is built to keep working through a power outage, a scenario a primary electric sump pump cannot cover on its own. The listing gives no horsepower or GPH figures, since output on this style of pump depends on incoming water pressure and volume rather than a motor rating.
- Water powered, no electricity required
- Accepts 20 to 100 psi inlet pressure
- Fully automatic operation
- Compact, fully-assembled design
Who it's for
Suits homeowners who already run an electric primary sump pump and want a no-power backup for storms and outages, rather than someone shopping for their only sump pump.
Strengths and trade-offs
Drawn from this product's published specifications.
- Works during a power outage since it needs no electricity
- Fully assembled, no motor to wire
- Accepts a wide 20 to 100 psi supply range
- No HP or GPH figures given, so output depends on your water pressure
- Requires an active, pressurized water supply to function
Performance notes
It runs on incoming household water pressure between 20 and 100 psi to drive the unit, so it needs no battery and keeps working as long as the water supply itself stays pressurized. It is described as fully automatic and fully assembled, so setup is largely plumbing it into an existing pit and supply line.
Specifications
| Brand | Liberty Pumps |
|---|
How it compares
This product against the closest alternatives we track in sump pumps.
| Product | Amazon rating | Ratings | ProductDome score |
|---|---|---|---|
| SumpJet® Water Powered Backup Emergency Sump PumpThis product | 4.6 / 5 | 1,300 | 2.7 / 5 |
| Superior Pump 91250 1800GPH Thermoplastic Submersible Utility Pump with 10-Foot CordSuperior Pump | 4.6 / 5 | 26,000 | 4.7 / 5 |
| WAYNE CDU800 1/2 HP Submersible Sump PumpWayne | 4.8 / 5 | 1,300 | 4.6 / 5 |
| Zoeller M53 Mighty-mate Submersible Sump PumpZoeller | 4.6 / 5 | 3,200 | 4.3 / 5 |
| Little Giant 1/3 HP Cast Iron Submersible Sump PumpLittle Giant | 4.2 / 5 | 587 | 4.1 / 5 |
Similar sump pumps from other brands
Questions about the Liberty Pumps sump pumps
Common buyer questions answered straight from the product spec data - no fluff, no "it depends".
Does the Liberty Pumps SumpJet need electricity to run?
No, it is water powered, drawing on household supply pressure between 20 and 100 psi instead of an electric motor.
Is the SumpJet meant to replace my main sump pump?
It is designed as a backup emergency pump, intended to work alongside a primary pump rather than replace it.
Does the SumpJet come as a kit I need to assemble?
The listing describes it as fully assembled and fully automatic.