sorry...I guess my question was answered while I was typing. Thanks!
Still leaning toward shocking the system and starting over...because we had eight years without problems I'm hoping we can get rid of this batch of leeches and start fresh. It is not feasible to empty the pond though....
Tonight I made a leech bate with meat in a coffee can. Unfortunately I didn't tie the rope properly and it fell to the bottom of the pool! now we have a can of meat at the bottom and no one wants to go diving in the leech infested water to get it! Yikes! Guess we'll have to try some creative fishing!