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INSTALLATION

NOTICE:

Install pump on a hard, level surface (cement,

asphalt, etc.). Never place pump directly on earth, clay or
gravel surfaces.

Piping

When installed in a 

sewage

system, pipe must be capable of

handling semi-solids of at least 

2"

diameter.

When installed in an 

effluent

system, pipe must be capable

of handling semi-solids of at least 

3/4"

diameter.

The rate of flow in the discharge pipe must keep any solids
present in suspension in the fluid. To meet minimum flow
requirements (2 feet per second in discharge line), size pipe
as follows:

A Pipe Size Of:

Will Handle a Flow Rate Of:

1-1/2"

12 GPM

2"

21 GPM

2-1/2"

30 GPM

3"

48 GPM

In a 

sewage

system use a 

2"

check valve in pump discharge

to prevent backflow of liquid into sump basin. The check
valve should be a free flow valve that will easily pass solids.
Be sure check valve installation complies with local codes.
In an 

effluent 

system use a 

1-1/2"

check valve in pump dis-

charge to prevent backflow of liquid into sump basin. The
check valve should be a free flow valve that will easily pass
solids. Be sure check valve installation complies with local
codes.

NOTICE:

For best performance of check valve when han-

dling solids, do not install it with discharge more than 45°
above the horizontal. Do not install check valve in a vertical
position as solids may settle in valve and prevent opening
on startup.
Drill a 3/16" hole in discharge pipe about 1–2" above pump
discharge connection (but below check valve) to prevent air-
locking the pump.

Electrical

Hazardous voltage. Can shock, burn,

or cause death. 

When installing, operating, or servicing

this pump, follow safety instructions listed below.
1.

DO NOT

splice the electrical power cord.

2.

DO NOT

allow electrical cord plug to be submerged.

3.

DO NOT

use extension cords. They are a fire hazard and

can reduce voltage sufficiently to prevent pumping
and/or damage motor.

4.

DO NOT

handle or service pump while it is connected to

power supply.

5.

DO NOT

remove grounding prong from plug or modify

plug.To protect against electrical shock, the power cord
is a three-wire conductor and includes a 3-prong ground-
ed plug. Plug pump into a 3-wire, grounded, grounding-
type receptacle. Connect pump according to NEC and
local codes.

For automatic operation, plug or wire pump into an auto-
matic float switch or pump controller. Pump will run contin-
uously when plugged directly into an electrical outlet. 

Connect or wire pump to its own circuit with no other out-
lets or equipment in the circuit. Size fuses or circuit break-
ers according to chart below.

Risk of electrical shock and fire. Be

sure that power supply information (Voltage/
Hertz/Phase) on pump motor nameplate matches
incoming power supply exactly. Install pump
according to all electrical codes that apply.

Fuse or Circuit

Dual Element Time 

HP

Voltage

Breaker Amps

Delay Fuse Amps

PWEL3B01A

1/3

115

15

10

PWEL4C01

4/10

115

15

10

PWEL4C01A

4/10

115

15

10

PWS4C01A-01

4/10

115

15

10

Operation and Installation

NOTICE: 

Do not allow pump to run in a dry sump. It will

void the warranty and may damage the pump.
An automatic overload protector in the motor will protect
motor from burning out due to overheating/overloading.
When motor cools down, overload protector will automati-
cally reset and start motor.
If overload trips frequently, check for cause. It could be a
stuck impeller, wrong/low voltage, or electrical failure in
motor. If an electrical failure in the motor is suspected,
replace pump.
Pump is permanently lubricated. No oiling or greasing is
required.

SERVICE

General

Hazardous voltage. Can shock, burn,

or cause death. 

Before removing pump from basin for

service, always disconnect electrical power to pump and
control switch.

Risk of electrical shock. Can burn or

kill. 

Do not lift pump by power cord. See “Cord Lift

Warning” on Page 3.
Submerge complete pump in a disinfectant solution (chlorox
or chlorine) for at least one hour before disassembling
pump.

Impeller Replacement

1. Unplug cord from power source.
2. Remove screws from lower volute housing (Key #1) and

separate volute halves.

3. Hold shaft with screwdriver in slot in end of shaft;

unscrew impeller (Key #2) counter clockwise from shaft.

4. Thread new impeller onto shaft. Hold shaft with screw-

driver and tighten impeller firmly hand tight.

5. Remount lower volute housing (Key #1).
6. Plug in unit.
7. Pump is ready for operation. To avoid flooding, test

pump before operating by filling sump and running pump
through one complete cycle to be sure that switch works.

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