looking for a quieter submersible pump in sump?

[powerboy]

maybe try to suspend the pump mid water so to speak.. try some rubber tie downs or something inert and hang the pump, maybe this will help you out...

sort of like this..

side view of the sump.... a little hokey, but you get the picture

well it seems my attempt at ascii art didnt quite post as well as i would have hoped, so you will have to imagine it