Liberty Pumps SumpJet Water Powered Sump Pump Model SJ10
The Liberty SumpJet model SJ10 sump pump is an automatic water powered emergency backup sump pump system (do not use in hot water). It uses no electricity and works with the city water pressure. Is the ideal economical standby to any brand of electrical sump pump. Designed for residential use in clear water only, is not designed to remove waste water, sewage, effluent, or water with debris in it.
Availability: In Stock Ships Next Business Day
Specifications:
Applications: It is the ideal economical standby to any brand of electrical sump pump. It is designed for residential use in clear water only. It is not designed to remove waste water, sewage, effluent, or water with debris in it.
Construction: Fully factory assembled, compact design, durable PVC construction with removable foot valve, built-in screen and adjustable stainless mounting clamp.
Minimum Recommended Pit Diameter: 18" (The pit must have adequate size to accommodate the main sump pump plus the SumpJet without float interference)
Inlet: 3/4" FNPT
Inlet Hose Requirement: High quality washing machine hose or other heavy duty hose. (Not included)
Outlet: 1-1/2 slip PVC
Discharge Head: 15 feet maximum
Water Usage: It does not use any water except during an emergency. In case of a power failure or other system malfunction, the SumpJet takes over
Minimum Water Pressure (with valve open): 30 PSI (using less pressure may not eject water from your basement)
Maximum Water Pressure (with valve open): 80 PSI
Maximum Water Pressure (with valve closed): 90 PSI
Maximum Fluid Temperature: 130 degrees Fahrenheit
Back Flow Prevention: Built-in
Efficiency: The pumping capacity increases with household water pressure and flow. At an 5 foot static head and a supply pressure of 40 PSI (with water flowing) it takes 1 gallon of supply water to remove two gallons from the sump. As the supply pressure increases with the static head constant, less supply water is required.
Major Height: 21.6"
Major Weight: 5.1"
Weight: 3.5 lbs
Note: The SumpJet unit is not intended to serve as a primary water removal unit or to increase the capacity of an undersized primary unit. Its purpose is to be used as a back-up to an electric sump pump due to power or pump failure.
Water Pumped In Gallons Per Hour* at Various Heads
Disc. Pressure PSI
Static Head in 1-1/2" or Larger PVC Schedule 40 Pipe
4'
8'
12'
15'
30
765
540
330
0
40
924
750
558
432
50
1032
870
720
600
60
1185
1020
912
810
* Pump capacity varies by inlet water pressure, working water pressure, discharge elevation, number of pipe fittings, inlet and outlet hose size, fluid viscosity, water clarity, water temperature, and cleanliness of the inlet screen. NOTE: Some districts may require a reduced pressure principal backflow preventer per ASSE Standard 1013. Check with your local codes.
