I plan to build a pond on a live spring with a constant flow of about 50 gpm in a 20 ft deep ravine and I'm concerned that that flow will be a problem during construction. A temporary dam can be built at the head of the pond but 72K gallons of water every 24 hours seems like a lot. I don't see how the spring can be diverted due to the lay of the land. I guess a pump with a long (100 yd ?) discharge hose could move the water past the pond site? Do I have a problem and what can be done about it?