"robJ" wrote in message
ups.com...
I have a backyard concrete pond that measures 12'W x 15'L x 4'D. Until
recently it has been FULL of lilies and a very dense root system,
anchored by substantial sediment. No fish. It has never been filtered
but never had an algae problem because of the amount of vegitation
surface coverage. This year, however we had an infestation of
caterpillar type worms that chewed all the leaves, leaving only stems
and a very ugly pond. I decided to drain and clean it and start over.
This time I'd like to have a few Koi and a more attractive pond. I am
planning on putting about four inches of gravel in the bottom and
replanting just a few of the lilies. My question is how should this
thing be filtered this time? What equipment, etc. for max clarity and
least maintenance
===================================
Most people regret adding gravel to their ponds and end up removing it in
time. I makes cleaning the pond impossible. For koi you will need good
filtration and aeration both. You may want to ask this on the moderated
pond group.
--

RM....
Frugal ponding since 1995.
rec.ponder since late 1996.
Zone 6. Middle TN USA
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