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1
General Information
.
Before installation, read the following instructions carefully.
performance. Closely following these instructions will eliminate potential operating problems, assuring years of trouble-free service.
Health Risk. Sump water is non‐potable. To reduce the risk of contamination of the potable water supply additional backflow
protection must be provided by the installer to meet the requirements of the local plumbing code or the requirements of the local
water authority. As per the Uniform Plumbing Code and per the Plumbing Codes of some states, including the State of
Michigan, installation of this product requires the use of an RP (RPZ) backflow protection device. Contact your local plumbing or
water authority for more information regarding the requirements for your specific area.
Risk of electric shock. When installing the SumpJet®, Always disconnect any electric pumps from the power source before
handling or making adjustments.
The SumpJet® is designed for use with municipal water supply, and is intended to be used as an emergency backup to
your existing pump system.
The SumpJet® comes with a foot valve installed and therefore does not require a check valve on the discharge. The foot valve
has a removable poppet. Where freezing discharge pipes are a problem, simply unscrew the strainer screen, remove the
poppet and spring, and replace the strainer. The SumpJet® will now allow water to flow back into the pit, eliminating discharge
pipe freezing.
Maximum water pressure = 100 psi (690 kPa) with the valve closed.
Minimum water pressure = 30 psi (207 kPa) with the valve open. (less pressure may not eject water from your basement)
For nominal backflow protection SumpJet® is pre-equipped with an internal check valve certified to ASME A112.18.3-2002 and
ASME A112.18.1/CSA B125.1.2005.
The discharge of the water-powered sump pump must not to be connected to the primary sump pump. Also, the discharge of
the water-powered sump pump is not to be directly connected to the municipal drain. An air gap with a minimum 1" gap should
be used, or the discharge should be directed outside of the building, with the end of the pipe between 150 and 610 mm (6 and
24 in) above the ground or the flood level of the area receiving the discharge.
The inlet of the SumpJet® is pre-equipped with a push-type pipe connector, SharkBite®, and can be used with PEX, CPVC, or
copper pipe.
Do not use pipe dope on inlet threads, and do not sweat copper fittings within 18" of SumpJet® body. Use PTFE (Teflon®)
sealing tape only when assembling threaded fittings into SumpJet® inlet. Do not over tighten threaded inlet fitting, and do not
hold onto float plunger shroud when tightening.
Purge water line prior to connection to SumpJet® to insure debris does not enter unit and clog the operating valve.
The SumpJet® utilizes a quick acting valve which, per UPC, requires the use of an approved water pressure absorbing device
to prevent water hammer.
DO NOT use SumpJet® in hot water.
The SumpJet® is designed for use in clear water only. It is not designed to remove waste water, sewage, effluent, or water with
debris in it.
WATER PRESSURE AT
INLET OF SumpJet® WITH
VALVE OPEN AND WATER
FLOWING
LIFT
PSI
KPA
20
138
30
207
40
276
50
345
60
414
Note: For optimal performance minimum recommended operating pressure is 30 psi. Use of an RP (RPZ) may lower operating pressure.
SUMP WATER REMOVAL AT VARIOUS HEADS.
( STATIC HEAD IN 1-1/2 PIPE OR LARGER)
4FT
1.21 M
3 / HR
GPM
GPH
M
11.0
660
2.5
12.8
765
2.9
15.4
924
3.5
17.2
1032
3.9
19.8
1185
4.5
©Copyright 2014 Liberty Pumps Inc. All rights reserved
Each Liberty Pump is individually factory tested to ensure proper
8FT
2.4 M
3 / HR
GPM
GPH
M
5.8
348
1.3
9
540
2.0
12.5
750
2.8
14.5
870
3.3
17
1020
3.9
12 FT
3.6 M
3 / HR
GPM
GPH
M
5.5
330
1.2
9.3
558
2.1
12
720
2.7
15.2
912
3.5
15 FT
4.5 M
3 / HR
GPM
GPH
M
7.2
432
1.6
10
600
2.3
13.5
810
3.1
3
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