"PoconoRobin" powlusr at ptd dot net wrote:

I'm a little concerned about the noise from the pump, since it will be
right
next to my quiet patio. I know our above ground pool pump is extremely
noisy and can be heard inside the house with all the windows shut. Will
the sound of a small waterfall cover up the noise from this pump?

Well, you can get much more efficient submersibles. I can't remember the
one I used to use (but googling this group would find it and others) but it
used 215W for 5000gph at 3', iirc. More power than I'd ever like to use
now that I live off-grid, but very efficient for a submersible.
--
derek