OPERATION
Discharge Hose Connection
Use a commercially available hose, hose connector, and hose band.
A short, large diameter hose will provide lower fluid friction and
improve pump efficiency. A long or small diameter hose will increase
fluid friction and reduces pump output. Never use a hose size smaller
than the discharge port diameter.
1 NOTICE 1
If a discharge hose is used that has a smaller inside diameter than
the port size, the pump case may be damaged. To avoid pump
damage, always use the correct size hose.
Tighten the hose clamp to prevent the hose from disconnecting under
high pressure.
Pump Priming
Pump priming is not required if the vertical distance from water to the
pump (suction head) is less than 14 feet on WDP20X or 16 feet for a
WDP30X. The suction head can be increased to 21 feet for the
WDP20X or 24 feet for the WDP30X by priming the pump.
To prime the pump, remove the air cushion chamber cap. Grasp the
suction hose next to the suction fitting and lift the hose about 1 foot
off the ground. Pour about 1 gallon of water into the pump case
through the air cushion chamber. Lifting the suction hose will help to
ensure the water goes into the pump housing and not out the suction
hose. Lay the hose back on the ground, and reinstall the air cushion
chamber cap.
PRIMING
CUSHION
CHAMBER CAP