If the plumbing can be made to have a winter return, slightly below water
level, and the pump left running, then water will not freeze in plumbing. A
tee fitting with valve for the waterfall and any fountains and spitters can
go one way, and the winter return with valve the other way. The waterfall,
etc. can be turned off with a valve. If a drain valve is placed near the
tee, then the waterfall piping can be back drained, and all the flowing
water will be recirculating without the exposure to waterfalls. I think
that keeping the system running is good, and keeps some bacterial action
going in the filter, others disagree. I think that it depends on location.
I would definitely drain all pipes, bead filters, etc. if I turned the pump
off.
--
RichToyBox
http://www.geocities.com/richtoybox/pondintro.html


"Paul in Redland" wrote in message
...
Depends. Where do you live. If the ground freezes to the depth that the
pipes are buried, they'll freeze also.
Paul

"BenignVanilla" wrote in
message ...
Do the pipes buried in the ground need to be emptied for the winter to
prevent bursting? I am contemplating a series of valves in my design
that
will allow me to close the pond off, and use the pump to suck the water
out
of the pipes. I figured this would be good for cleaning and for
winterizing.

Do you think it is an unnecessary expense?

--
BenignVanilla
tibetanbeefgarden.com
x-no-archive: yes

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