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Page 4SKU 47906 For technical questions, please call 1-800-444-3353.
Installation
Note: For intake and discharge hose locations, see FIGURE 1 on page 5.
Note: If power cords must be extended, only use UL approved power cords that are 18 Gauge
wire. Do not extend the power cords more than 50 feet.
1. Install the pump on a rigid, level platform above the water level. This platform must provide
a solid, level surface that is capable
of supporting the weight of the pump,
and attached piping filled with water.
Never allow the pump to become
immersed in water.
2. The level of the intake port should not
be more than 12-15 feet above the
water. Pumping efficiency falls off as
the height above the water level
increases.
3. Keep the vertical lift that the pump
must move water before discharge, to
a minimum. Vertical delivery above a
few feet will degrade pump efficiency.
4. The intake port must have a screen (not included) attached to prevent introduction of
debris into the pump. At the end of the discharge pipe, either purchase a pre-made screen
to fit, or wrap loose screen and secure with wire.
Note: A foot valve (not included), installed on the suction inlet, is recommended to insure that
the pump will keep it prime.
5. Lay out the intake and discharge pipes with as few turns as possible to prevent air pockets
within the lines. Air pockets interfere with pressure switch performance.
6. Intake and discharge pipes must have a minimum of 1” to 1-1/4” diameter. Systems with
larger vertical components should have larger diameter piping. Keep in mind that the
maximum vertical lift (total vertical distance from the inlet screen to the discharge outlet)
is 140 feet.
7. For your protection, the power outlet used should have a Ground Fault Circuit Interrupter
(GFCI). Have it installed by a qualified electrician. Keep the power line safely away from
water.
8. The inlet and discharge lines should not be wedged or stressed in a way that puts strain
on the pump. Do not support the pump with the inlet and discharge lines.
9. This is a self starting pump that uses a pressure switch. Once the power cord is connected,
the pump can start at any time. Do not handle or perform maintenance on the pump
if the power cord is plugged in.
Unpacking
When unpacking, check to make sure the parts listed on pages 7 and 8 are included. If any
parts are missing or broken, please call Harbor Freight Tools at the number on the cover of
this manual as soon as possible.
Typical Installation
Discharge
Intake
Pump
REV 12/05