I have that exact Kasco diffuser. I have 3 in my pond. Enormous amount of tiny bubbles. Only had it a few months but am running it 24 hours a day with no problems. Filled the base full of pea gravel and place directly on the bottom of the pond floor. Tied a duck decoy to each for easy retrieval for cleaning. I am running the 1/2 hp pump.

Dear Alcohol, We had a deal where you would make me funnier, smarter, and a better dancer... I saw the video... We need to talk.