We went to water the garden today, since it's been so darn dry lately, and our pond has hundreds of tadpoles.
If you are wondering about the bubbles, it's because the water table is only about 3 feet down, and the bottom of the pond is right at that limit. It actually creates these air bubbles. No matter how much water is in the pond, the weight of the water does nothing to keep them down. We've tried putting pipes under the liner, walking the air to the sides, and they just keep coming back, and not always in the same location. I actually heard it burp today... any suggestions?