I currently only have a small kiddy pool as a pond for my ducks. It is to small for all of them, and I want to get something both bigger and deeper. I plan on using a 5-6ft stock tank that is 2 ft deep or so. I was wanting to put a filter on it, but am worried about the pump clogging. I was thinking of using an above ground pool pump for this. Anyone try this yet? I also want to bury the tank at least 3/4 of the way to make it easier to access for the ducks. Can you place the pool pump above water level?