Is it easier (less HP, less money and electric, less priming) for a pump to
push rather than pull water? I plan on a 3' waterfall about 30' from the
pond flowing in a stream, dropping another foot, to the pond. Should I put
a submersible pump in the bottom of the pond and push water to the waterfall
or put it above ground at the waterfall end and pull water? I'm assuming I
will have my filters at the waterfall end.

Any advise or sites? Approx what HP and gph will I need to shop for?
Thanks

Chip



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