I've been using the whisper 100 air pumps for a few years now and in the beginning they were really great. They weren't loud and pumped up plenty of air. But slowly they just started getting louder and louder and started pumping less and less air. Now I have 4 air pumps that are really useless. The pump has 2 spots where the air comes out of and the air doesn't come out evenly (if any air comes out at all) and they got so loud it sounds like something is rattling inside and barely any air is coming out. They can't even power a small air stone, literally no bubbles are coming out. I was wondering if anyone else has had these issues with the whisper and if it is possible to fix it.