So I walk out this morning and my pond is completely empty! Just 1 inch of water and Harvey sitting at the bottom. I immediatly thought "Oh great- it cracked". So we filled it back up so I could buy more time to get Harveys tank inside back together (I thought I had a few more weeks). I went out and while I was gone, I realized that the filter tilted over and the water cascade just pushed all the water out. Whew! Get home, water is still filled... no crack!
6 hours later, go back outside, pond is empty again. Filter fell over AGAIN. All summer everything was fine, and now all of the sudden, twice in 1 day. I'm guessing Harvey is knocking it over. So now the pond is pushed up out of the ground since all the dirt under it is overflowed with 250 gallons of water.
So I just filled it up half way for the night, and to give the dirt time to dry out and settle back down.
Has this happened to anyone else?!!?

