~ jan JJsPond.us wrote in message . ..
On 26 Aug 2004 23:04:37 -0700, (John)
wrote:

Ok, I bought a nifty, inexpensive magnetic-drive pump, a Pond Mag
Drive 700.
Doubtless, a fine machine. What it isn't is, more powerful than my
Little Giant PCL-025 475GPH. It's the same. I'd promised SWMBO it
would be noisier. Bummer.

What would be noisier? The pump or water fall?

Water fall. Pump is pleasantly inobtrusive.

If waterfall, perhaps it is
the tubing you're using, not the pump that is the problem? Go to a bigger
diameter

On further reflection, I seem to be suffering from the erroneous
impression that, for pond distances (5-15 feet), a hose needn't be any
larger in diameter than the pump outlet, as if we were discussing
electricity, here. Although I've doubled the diameter of the hose over
that of the original, there is only cheapness keeping me from buying
another even larger hose.