Air pump Silencer       

Here's an awesome idea quiet up loud pumps.     

The noise can be virtually eliminated when you

suspended the air pump in a bottle by its power

cord.  Drill a 1 inch diameter hole in the middle

of the bottle cover to fit the power cord and the

plug through it. Another smaller hole was drilled

long enough to snuggly fit the air tubing through,

and another hole just large enough to fit a 3 - 4

inch length of 5/16" diameter rigid tubing. This

pipe lets air into the bottle for the pump to pump.

The most time consuming part is cutting and

glueing two pieces of plastic in a way so that it

crimps the power cord and closes that 1 inch

hole. After this just make sure the pump doesn't

touch the side wall and you have yourself a very

quiet air pump.