OK, thanks, guys. I just had this idea that the pond freezing and thawing would expand it or crack it or something - like a pothole in the road does when it ices up.
My pond didn't stink at all this summer, don't know why it didn't. It also didn't get algae in it - maybe because it's mostly shaded? Saw some solar pond pumps that had promise; otherwise, I'm running electric out to the pond and lord knows how much that'll cost...
No fish yet, as we have some big shorebirds and herons around here that I don't feel like feeding.
