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Old 09-08-2005, 05:57 AM
Richard Tanzer
 
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Lyn -

That sounds like an excellent idea. As I see it, the key to a bio filter
is simply to provide a lot of surface area for bacteria to live. Think
of how a stream naturally keeps clean - lots of water constantly flowing
over gravel.

It sounds like the container will be easily seen in your set up. You
might want to use attractive stones or even marbles.

- Rich

"Lyn" wrote in
:

How about if I make a container filled with gravel or whatever
and push the water via the output of the pump into the bottom
of it and then have the overflow cascade down a falls into the
pond? The design of the pond is such that this idea comes to
mind. the top of the falls is about 2 feet above the surface of the
pond.

The problem that I have this concept is that I know pine
needles will be falling into the pond. I don't mind netting them
out each day but if there were a way to automate their removal,
that would of course be better.

Thanks!!!
Lyn


"Richard Tanzer" wrote in message
.. .
~ jan JJsPond.us wrote in
:

www.jjspond.us

[... snip ...]

Now the filter system: where the water cascades from the 2nd pond
into the 3rd pond it flows into a large (about 2 gal.) flower pot -
the kind used for water plants, actually more of a basket. The basket
is filled with gravel.

I find that by washing the gravel about 4 times each year, the water
stays clean and the fish are health. Also, sediment collects in the
upper

ponds,
which I clean out whenever I wash the gravel.