"~ jan" wrote in message
news
On Fri, 10 Aug 2007 00:27:46 CST, "Bill Stock" wrote:

Also I imagine the skimmer should be as far away form the waterfall as
possible? How do you deal with the freezing issue since the pipe to the
bottom drain will funnel cold air to the bottom drain pipe? I had planned
to
run the pipe from the skimmer outside of the pond to minimize leakage, but
I
suppose the inside route might solve the freezing problem.

I'm not sure what you're asking. In winter my bottom drain is plugged, and
just the skimmer runs. To keep ice away from it I have the stock tank
heater next to it.

I planned to have a vertical pipe outside the pond leading down to the
bottom drain pipe. The skimmer pipe would pass through the liner and into
the vertical pipe. Since the shutoff valve would be near the filter (i.e.
the bottom drain pipe would be full of water) the water in the skimmer pipe
would be full to the level of the pond. This would be well above the frost
line. Although I believe the flexible PVC is fairly frost resistant.

I guess I could install a sonotube at the ponds edge to hose my secondary
valve (before the skimmer) and the skimmer down tube.



In the lily pond the floating part of the skimmer will be removed as I'm
not planning to run that filter all winter. ~ jan
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Zone 7a, SE Washington State
Ponds: www.jjspond.us