I really DON'T want the pond longer... there's hardly any yard as it is, and this would take up just about any room there is for walking. (I do have liner enough to go a bit wider, but it's not possible to go wider because the yard is so narrow.)
But... now you guys have planted the idea... maybe I can do a seperated / segregated pond and, instead of constructing that lily corral out of PVC pipe and mesh, maybe I'll just make a section the koi can't get into, and keep the lilies and fantails in there. In fact, I just did the math, and that would use up six feet of liner for the division wall, but still allow for the 3' expansion I was planning.
Hmmm.... Sounding better and better.
Except now I'm gonna have to figure out how to filter and aerate that side.
I'm glad I think about these projects for a long time before doing them, and also ask questions... you sure get interesting ideas and options from picking the brains of other folk!
Thanks.