At first when I put it in the pond, it was fantastic! Then the outside of the filter clogged up and the fountain stopped. This happened every half an hour until I could get in the pond to clean the blossoms etc that were falling in there. Then After cleaning the outside of the filter again I turned on the power and it blew off the top. So back in I went and put some plumbing tape around the bottom of the screw-in bit and it worked perfectly until 2 days later and the top blew off again. More plumbing tape but not a good result. I would not recommend this fountain.