Heck Gary, reply here so everyone can benefit....

I'm a little confused on it too. Wouldn't dropping the one end into the pond first just let the water that's in the pipe flow out into the pond?

Cold- I have a big trash pump that I hook up with solid pipe and pull the water up 10' or so. I think the longer the lift, the more important a tight seal becomes. If I get the slightest air leak in one of the joints, it just don't work. Adding more glue to the outside never seems to fix it either. Its a tear apart/cut up and re-do type of thing. Hard thing to figure out where its leaking when your by yourself. Sometimes a liquid soap will help.