On Sat, 21 Aug 2004 01:27:01 GMT, Keith Nuttle
wrote:

I live in central indiana. My pond is about 1400 gal 120 sqft with
three levels and sluice to from each level to the next and the bottom
level is pump to the top level.

Should or can I let this pond run all winter?

If not when should it be turned off?

If you turn the pumps off what holds the water in each level?
First Law of Plumbing:
"Water [well, I'm paraphrasing here, it's a family group] runs down
hill."
Are there fish in any of the levels?
--
Crashj