Dangerdoll
Global Moderator
when I used an airpump years ago, I had a thick piece of rubber... gosh, it was about 3/4" thick and about a little longer and wider than the pump itself, placed the pump on that behind the tank and it was pretty quiet. I would have been afraid to put it on cloth or something because of the bottom piece that breaths in for the pump... or at last I thought that's what the hole on the bottom did.... I thought it needed airflow so I was sure to see that it had it. Where I got this rubber piece is beyond me though... I am sure home depot or lowes would have it though...