It's just a momentary slow down when we put the ponds away for the winter.
Mine are all done now, what a chore as we went from sunny warm days, to
really cold days real fast this fall and I had the Demo pond plus mine own
ponds to do. Whew, I'm not getting any younger that is for sure. My hands
still hurt from gripping the shop vac! ~ jan
See my ponds thru the seasons and/or my filter design:
http://users.owt.com/jjspond/

~Keep 'em Defrosted~
Tri-Cities, WA Zone 7a
To e-mail see website