If you REALLY wanna make it quiet at all costs you could goto your local hardware store and ask for some sound proof insulation and line a shoebox with it or something.... Anything thats really soft, like foam or cotton or towels like you have will absorb the sound..... I dunno how much sound proof insulation is but it shouldnt cost too much for such a small box... or just buy a quieter pump.
good luck with your grow... |