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INSTALLATION
PIPE DIVIDER & AIR STONES CONNECTION
One or more air stones can be connected to the pump outlet with a pipe & an air divider. Choose an air
pipe that suits your installation equipment, ensure all pipes are secured with clips when installing the air
pump. Using larger bore pipe and avoiding sharp bends will improve performance of this air pump when
installing.
Use new and su ciently large air stones with enough discharge capacity. Place them no deeper than 3 m
in the pond. Bends in the air pipe, air stones placed too deep, air stones are too small, old or dirty air
stones, etc. will reduce its capacity. Thus while operating, never fully close o pump outlet Ensure that
the pump can discharge su cient air all the time, otherwise the pump will heat up leading to damage.
To prevent any water owing back into the pump when powered o , it is advisable to install the pump
above water level. If a non-return valve is used on the outlet pipe, the pump may go beneath the
waterline. Please note that never place air pump in water. To guarantee a long service life, it is necessary
to install the pump under dry conditions, no moisture or dust. Dirt and moisture can seriously shorten
the service life of this pump. Please note that an ambient temperature above +40°C can cause the
diaphragm to crack.
DISASSEMBLY & REASSEMBLY THE DIAPHRAGM
Steps of replacing diaphragm:
A. Loosen o the screws (1)
B. Take o the air chamber cover (2)
C. Loosen o the nut (11)
D. Take o separately the diaphragm depressor (3), Electrostatic membrane (4) & diaphragm (5)
E. Replace with a new diaphragm. Please note that when xing, make sure the diaphragms ts exactly to
the slot of the air chamber (2)
F. Install all the parts back by counter steps.
FILTER SPONGE CLEANING & REPLACEMENT
Any dust or foreign matter attached on the pump air inlet may cause abnormal noises or result in a
failure of the pump. The following are lter sponge cleaning & replacement instructions :
(1) Make sure to unplug the pump rst before cleaning & replacement work.
(2) Remove the lter sponge from the air inlet At this time, remove any dust or foreign matter from the
air inlet, the lter cover and the lter sponge mounting surface. If the sponge is heavily soiled, a piece of
new sponge is needed or you can use a neutral detergent to wash the old sponge down, remember to
rinse it well with water completely and dry it in the sun before reinstalling, detergent is bad for your sh.
Entry air cover
6
2
4
1
7
5
3
13
4
3
11 12
6
7
5
Air lter sponge
Cover
Screws
10
9
8
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