onga JMM100, Owner'S Manual

Page: 10 / 20

To maintain optimum performance from your pump, the suction pipe should
be:
- Kept to the shortest distance practical, but not shorter than
the recommended length.
- Re-enforced crush resistant (non-collapsable) hose or pipe.
- All fi ttings should be air tight.
- Pipes should be equal to or larger than the diameter of the
suction/inlet port.
- Optional: Fitted with a suction Strainer/Filter
In-line strainers/fi lters are only recommended for pumps fi tted with Minipress
or PressControl. Regular maintenance is required to keep them clean and
provide maximum pump pressure.
7. Discharge
The length and diameter of the discharge hoses/pipes will affect the pressure
and fl ow rate at which your pump operates. Pressure ratings of all components
must exceed the maximum pressure of the pump by an appropriate safety
factor. All pipework should be supported independently of the pump.
Connect the fi tting at the top of the pressure controller (1”BSP Male) to the
household plumbing or garden taps*.
*If you want to test that the pump is operating correctly prior to having the plumbing connected,
attach a hose with a trigger nozzle to the top of the pressure controller.
8. Pump Priming
Ensure that there is at least 200mm of water in your tank, (i.e. that the tank
outlet is covered, and the pump will not draw any air into the system). Open the
gate valve on the tank. Check for any leaks, and repair these if necessary.
If no leaks are present, remove the priming plug to open the priming port on
the top of the pump case.
If the tank is above the level of the pump, water will start to run out of this
port. Replace the priming plug carefully. Your pump is now ready to run.
(Note: If a check valve is installed in the suction line, water may not fi ll the
pump. If this occurs, follow the instructions below).
If the tank water level is below the level of the pump, you will need to fi ll the
pump body and suction line. Remove the priming plug and fi ll the pump body
and suction line using a funnel.
9