AADAP25L - USER MANUAL
OVERVIEW
Thank you for purchasing the AADAP25L Dual Diaphragm Air Pump.
INSTRUCTIONS FOR OPERATION
1. Remove the air pump from the packaging, and the twist tie from the power cord.
2. Gather the necessary 1/4" diameter air tubing and air stone(s) (diffusers).
3. Mount the air pump unit on a stable, dry surface above the water level and near a 120V power
source.
4. Connect one end of the air tubing to one of the four air outlets, and the other end of the air tube
to the air stone (diffuser).
5. Repeat step 4 with the other three air outlets, if needed. Close the valves on any unused outlets
(the valves are closed when fully in the “3:00” or “9:00” positions and are fully open when in the
“6:00” position; between those positions is the adjustable range of air pressure).
6. Place the air stone(s) in the desired location(s) of the nutrient reservoir/tank/container where
added oxygen supplementation is needed.
7. Plug the power cord of the air pump into a 120V outlet.
SPECIAL NOTES AND INSTRUCTIONS
Ensure that the air pump unit is located above the water level of the reservoir tank being
oxygenated. Failure to do so may result in water back flowing through the air tube and damaging
the pump. (To eliminate any chance of this, use our Active Aqua 1/4" Air Pump Check Valve,
item AAPCV025.)
To adjust air pressure to the available outlets, turn the power adjustment knob located on the top of
the unit housing.
WARNING: DO NOT SUBMERGE. Avoid direct contact with water to the unit or electrical
components. Failure to do so may result in electric shock. Prevent pump motor burnout by ensuring
adequate air flow around the unit.
TO PREVENT ELECTRICAL SHOCK FROM BACK-SIPHONING, LOCATE THE PUMP ABOVE THE WATER
LEVEL.
ALWAYS DISCONNECT POWER BEFORE INSTALLING OR SERVICE.
DO NOT TOUCH THE ELECTRIC SOURCE PLUG WITH WET HANDS.
LOWER HOUSING AND PUMP SURFACES CAN BECOME VERY HOT DURING OPERATION. DO NOT
TOUCH THESE SURFACES UNTIL UNIT HAS BEEN SHUT OFF AND ALLOWED TO COOL.
CAUTION: RISK OF BURSTING - USE ONLY RECOMMENDED AIR-HANDLING PARTS ACCEPTABLE
FOR PRESSURES NOT LESS THAN 10PSI.
SPECIFICATIONS
Power: 14.7 Watts
Voltage: 120V/60Hz
Output: 25 L/min
Pressure: >3.77 psi
Ouput Pressure: 0.026 kPa
Weight: 4.5 lbs/2.1 kg
Size: 5.6"L x 5.1"W x 3.6"H
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