[guards73/2.0]

I think I have that same "generic" rotary pump. It's real small,but sounds like a dremel. I'll try sonically isolating the thing ( my audio background suggests high-density foam weatherstripping tape from Homo Depot and put into some sort of shock/vibtration dampng mounting) and I think part of my problem with this is that I have my sound system hooked uo through the key ( to prevent idiot battery drain) and that damn pump still runs zzzzzzzzzzzip! while the car's parked @ the beach and the stereo is playing. That sucks. I even thought about a fuel pump switch, but perhaps an ignition-off stereo makes more sense. A bellows pump sounds like it would be quieter, but I've never heard one.