I run a Mag 950 on a 1.5" return from my sump. While quiet, I think it could be quieter. In particular, I get a hum that I think is transmitting throught the bottom glass pane of the sump and then my hardwood floors. I have a piece of foam under it, but it doens't help much. Heat transfer doesn't seem to bad (but then again, it's a small pump).
Has anyone tried Oase sumbmersible pumps?
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