Instructions / Assembly

Pre-ﬁlter Volute Intake O-ring

Impeller

Rotor

Pump Body

Maintenance and Inspection

• Regular maintenance and inspections are a necessity for continued ecient functioning of

the pump. If any abnormal conditions are noticed, refer to the section on Troubleshooting

and take corrective measures immediately.

Monthly Inspection / Cleaning

• Check for any drop in performance. Reduced performance is usually caused by debris

blocking the pump intake.

• Detach the power cable from the receptacle or turn o the power supply (circuit breaker).

• Disconnect the pump discharge and remove the pump from the water.

• Remove any accumulated debris from the surface of the pump and pre-ﬁlter.

• Unlock the latches on either side of the pre-ﬁlter by pulling outward from the pump handle.

Slide the pre-ﬁlter o to expose the volute. Inspect the threaded inlet on the volute and

remove any accumulated debris.

• Remove volute by rotating counterclockwise one quarter turn while pulling lightly outward

from the pump body.

• Inspect the intake O-ring for nicks or breaks.

• Inspect the impeller and remove any debris that may be present.

• A stainless steel screen located behind the impeller draws water in to cool the rotor. If the

screen becomes blocked the pump may overheat. Inspect the screen and remove any

accumulated debris.

• Spin the impeller. If the impeller is dicult to turn, feels “gritty”, or a grinding noise is

evident in the rotor chamber, remove the rotor as per the instructions below.

Removing the rotor

The rotor must be unlocked using the built-in wrench located on the bottom of the pre-ﬁlter

before it can be removed from the rotor chamber. Slide the impeller wrench behind the

impeller and engage two of the locking posts located on the face of the rotor. Push the

wrench tightly against the rotor face and rotate counterclockwise one quarter turn. Once

unlocked, remove the rotor by pulling the impeller outward from the pump body.

• Inspect the stainless steel rotor and the rotor chamber for built up debris. Loose debris

can be ﬂushed out with clean water. Often in hard water, well water or pond-free

applications, debris may appear as a crusty ﬁlm around the rotor and in the rotor chamber.

Remove this ﬁlm using a scrub brush and white vinegar.

• Slide the rotor into the rotor chamber and lock it in place by rotating clockwise one

quarter turn.