Of course, dropsy has its advantages, but low reliability simply kills them. A year later, the pump began to make a loud noise. You can clearly hear air bubbles in the system. After a month of such noisy operation, the system began to work very loudly, and then there was so much air in the air that the pump began to air in and stopped driving water. I had to tilt the body very much to the side (almost horizontally) to get a large air bubble out of the pump. Definitely do not recommend. Now I'm looking for another water bottle. The first cheap deepcool lived for almost 3 years. I will look at this manufacturer for a new one.