After 1 year is annoyingly loud!!!!
I liked this air pump when I first bought it last year. Lately I have noticed a loud buzzing sound that comes from it, which is extremely annoying. I thought paying this much money would be worth it, if it was a better product. Needless to say I am very disappointed that after only a year of use this has happened to it. Also the bubbles have diminished tremendously. I think I am going to try to find a different brand.