BV,

The diffuser makes the water pull along the bottom, rather than coming
straight down to the bottom drain. With a diffuser the area of the pond
cleaned is much larger. I don't use a diffuser and feel that my bottom
drain does an excellent job, but it supposedly would be even better with
diffuser.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"BenignVanilla" m wrote in
message ...
I have a BD installed but I did not install the diffuser yet, so I have
just
a raw pipe sticking up. I do not see any evidence of a vortex being
created
in the water. Is it possible that the combination of 4'' pipe and size of
my
pipe negates my need for a diffuser?

--
BenignVanilla
Pond Site: www.darofamily.com/jeff/links/mypond

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