I guess I needed to fill in the rest of the scenario. I'm using my home well. My Geo well will keep up at 38gpm. It is a variable speed pump and pretty energy efficient as well.

What I want to do is T into one of my current frost free hydrants about 150 feet away and bring down a 1" line below the frost line. Doing this it seems I have no way to use a valve type system during the winter because the hydrant handle would have to be on (under pressure) during the winter and would freeze solid.

The other way this could be done is running a line from the house and thus getting rid of the need of a hydrant on the pond end. Still though, As soon as I put a valve out where the valve is exposed to the air, I'm frozen. Only thing I can think of is if the line came in under the water line and was aimed upwards. My imagination is failing me on this one.

I just got a new pond, I made it twice because I aint so bright.