What do I need to know to tone down the loud hum of my Waterford 1.5 hp pump? I thought I had it figured out in my head, but now after coming home with a sheet of 1" styrofoam insulation...I don't think I did. I was going to wrap the whole filter/pump combo, but then I looked at it and wondered why I don't just make a box to fit the pump. I started playing around with a card board box, to get the size right and all, but it doesn't even take the edge off the sound. I was planning on having 3 sides and a top, with the end away from the deck open for venting and for a way for the sound to go. It's not working. Any suggestions?
Oh, here's my set up.