Quieting an Air Pump

Air Pumps for Aquarium Use - How Can I Make My Air Pump Quieter?

There are no really quiet aquarium air pumps. Aquarium air pumps move air by causing rapid vibrations in a rubber diaphragm. Though this does move air fairly well, the vibration also produces noise. However, there are several things you can do to make your air pump quieter:

First, make sure that all of the air stones are clean and not in need of replacement. To do this, pull the air stone out of the water and disconnect the airline. Blow gently through the air stone from the tip that the air line attaches to. If it is difficult to blow through the air stone, then the air stone is clogged and needs to be replaced. Air stones will need to be replaced at least once a year as they get clogged with algae, bacteria, fish waste, and dust. However, if your home is particularly dusty or smoky, of if your air pump does not have an air filter, you may need to replace the air stones as often as once a month. If the air stones are dirty, they will put extra pressure back on the air pump and this will make the air pump work harder to move air, therefore causing more noise.

Also, make sure that the air pump is above the level of the surface of the water. This also makes a difference on the back pressure on the pump and thus cuts the noise. In addition, if your pump stops (in case of a mechanical failure or power outage) water could siphon through the air line if the pump is positioned lower than the surface of the water. This could damage the pump and could also cause property damage was water drains over furniture and structure.

Place the pump on a solid surface. If the pump is on a hollow container, the container will often resonate with the pump, making the pump seem louder. Setting the pump on a thin piece of metal, glass, or pressed board will tend to have the same effect, creating unnecessary, and possibly irritating noise.

Finally, place a folded piece of cloth or a sponge under the pump to absorb the vibrations and therefor dampen the noise generated by the air pump.

These several steps can greatly reduce the disturbance factor of an air pump, and increase the enjoyment of your fish tank. Remember, regularly check your air pump to make sure it is working properly and has not vibrated itself to the edge of a shelf or ledge where it may fall and damage something.

My snail mail address is: Keith Seyffarth, 217 W. Koch, #308, Bozeman, MT 59715.
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Page most recently modified: February 11 2007 19:06:21.