Somewhere I posted that my jebao I had stopped working and I could get it going again but it would stop again. Well I ended up finding a impeller for $10 awhile ago not knowing what was wrong and decided to mess with the pump due to setting up another tank to my supprise after seeing most have issues with the adaptor mine was the impeller there is a clear plastic piece that has cracked cuased the impeller to not allways turn. I have own some more reputable pumps that have failed so really cant complain about this pump at all.
My biggest problem is not keeping back up pumps and heaters could really get me in trouble but when I think of doing it seems like I always rather buy a fish or something.