Installation Tips; Air Flow Adjustment - Fluval Q1 Mode D'emploi

aquarium, but not be positioned directly above the aquarium. The surface should have a raised edge to
prevent the air pump from sliding off. Use a Check Valve (sold separately) in the airline between the air
pump and the aquarium to prevent back-siphoning (ill. C).
Once the air pump has been installed, do the following:
1. Attach one end of the airline tubing (sold separately) to the air outlet(s) on air pump.
2. Attach the other end of the airline tubing to filter(s), air stone(s), ornament(s) or any other air-driven
aquarium accessory. Ensure that the airline tubing has no restrictions or kinks.
3. Plug air pump into outlet. Be sure to allow for a "drip loop".

INSTALLATION TIPS:

• The pump should be placed in a location which is dry and relatively free from dust. Do not place the air
pump on carpet, as fibers might collect on pump and clog free-flowing air from entering pump. This will
decrease the air output, cause overheating and reduce the service life of the pump.
• Air control valves with multiple outlets may also be used to power additional apparatus in the aquarium.
When using multiple air valves, it is recommended to have one more outlet than required by the
accessories; this will be used to bleed over production of air due to back pressure build up. Please refer
to BACK PRESSURE section for more information about back pressure.
• Air Pumps can be used to operate a variety of aquarium accessories such as air stones, corner filters,
under gravel filters, and ornaments. Follow installation instructions for your particular aquarium
accessory product.
CAUTION: Care must be taken during installation to ensure that water cannot siphon out of the aquarium
through the air hose and damage the air pump. To prevent back-siphoning when removing the filter, air
stone, ornament or any other air-driven aquarium accessory from the aquarium, do the following:
1. Install a Check Valve.
2. Leave pump running while you disconnect tubing from pump. Disconnect tubing and tape this end of the
tubing to the very top frame of your aquarium.
3. Filter(s), air stone(s) and other air-driven ornaments can now be safely removed from your aquarium.

AIR FLOW ADJUSTMENT

The Fluval Q2 air pump incorporates a flow control knob (rheostat) to control air
output. Turning the knob clockwise increases the air flow and counter-clockwise
reduces the air flow. Proper air flow control reduces harmful back pressure and
lengthens the service life of the pump. The Fluval Q1 air pump is not equipped with
flow control; in which case an air control valve can be used to regulate air output
(sold separately).
In order to achieve correct airflow, a balance between the valve setting and the
pump output is necessary. The ideal setting is obtained by minimum back pressure
or non restriction of flow of air. Never physically restrict the output of the pump.
Restriction causes damage to the diaphragm (see BACK PRESSURE section for
more information). Adjust air valve output as required.
To regulate air volume using an air control valve with multiple
outlets, it is recommended to have the last valve available to release
excess air pressure build up (see BACK PRESSURE section for more
information). In regulating the air pressure, it is best to work from the
valve farthest from the input of the air valve. Remember to have the last
valve completely closed so as not to lose any air pressure. Proceed
to make adjustments on the remaining valves. Once the adjustments
are complete, slowly open the last valve to the point where no loss
of air output is noticed from the items controlled by the other valves.
To achieve and maintain an equal balance of air pressure to the
accessories in the aquarium, further adjustments of the air valve may
be required depending on the items powered by the air pump.