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2. Remove the old diaphragm(s) from the valve housing and
then fit the new diaphragms.
3. Make sure the air pump is correctly put back together and
securely fastened with the screws.
TROUBLESHOOTING
No Air Is Being Produced
1. Ensure that the air pump is plugged
2. Follow the maintenance section. Ensure that there are no blockages in the air hose
assembly and that all valves allow air passage. Check that the air hose is not kinked.
3. Turn the pump up. The control knob is located on the front of the pump.
4. Remove air hose. Unplug appliance and inspect the diaphragm for tears or rips. Any
opening in the diaphragm will make it impossible for the pump to produce air for aeration
purposes.
Noisy Operation
1. Placement of your air pump can greatly affect the amount of noise it makes. Try suspending
the noisy air pump at, or above water level to reduce the resistance of water on the air pump.
IMPORTANT!
Ensure the air pump is not positioned so it could either fall in the water or get
splashed. Air pumps are not designed for exposure to water, and touching a wet air pump
in.
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