In article ,
(GrampysGurl) writes:

I pull my pumps up from the botom and continue to run my waterfall all
winter.
It was really cold this January in Connecticut and we did fine. I am going to
try an airstone this year just as a second safeguard.
Colleen
I do basically the same thing, however this winter, the GFCI tripped and it was
so cold that the hose end froze in the ice and when I restarted the pump it
wasn't discharging, so I had to shut it down and run the airstone, glad I had
one on hand.

Karen
Zone 5
Ashland, OH
http://hometown.aol.com/kmam1/MyPond/MyPond.html
My Art Studio at
http://members.aol.com/kmmstudios/K....M.Studios.html
for email remove the extra extention