On Mon, 31 Dec 2007 18:14:08 CST, "Reel McKoi"
wrote:

======================
If it works right and don't constantly clog with leaves and frogs, it should
remove the sludge and mulm that tends to collect on all pond bottoms. No
more drain downs like we have to do. But then if there are fry... you still
have to do draindowns to remove them.

I've never had mine clog with any of the above. Have you? ~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us