Hey guys. I bought my Sunsun 302 in April and was initially very happy. Now, I'm not so sure. I'm getting almost no flow! I just cleaned it again and took out most of the filter media, cleaned the impeller and everything around it, and the hoses aren't very dirty. The first time I plug it back it after that, great strong flow, but after a couple days it's crap again. Literally, I can see a few pond snails doing laps in the hoses! Am I missing something? Seriously, I'm not trying to be Ms. Negative, but I just need to figure this out because I'm not very happy with this filter right now.