On Thu, 20 Sep 2007 11:21:21 CST, "MLF" wrote:

Both work fine, but a divided settling tank is usually bigger than the
vortex type and needs to be cleaned out from time to time. And many people
claim the vortex variety is very efficient and requires less maintenance.
Personally, I think either one will do the job, it's just a matter of
preference and cost.


The nice thing about vortex filters (I don't have one, but if ever.... ) is
one opens a valve and all the muck at the bottom goes whoosh in a matter of
a mere minute or two. :-) ~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us