i keep mine at the 6" level because its a cheap pump and not very strong. i
discovered it would blow the diaphragm and i'd have to fix it if i kept it
any lower.
mad
--
"There are known knowns. These are things we know that we know. There
are known unknowns. That is to say, there are things that we know we don't
know. But there are also unknown unknowns. There are things we don't know
we don't know."
Donald Rumsfeld

From: John Bachman
Organization: MV Communications, Inc.
Newsgroups: rec.ponds
Date: Sun, 05 Oct 2003 19:29:15 -0400
Subject: below 50F - feed or not to feed

I see no logical reason
for keeping the airstone off the bottom of my 40" deep pond.



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