Hey guys, so i set up my first aquarium today, and i put together the filter, watched countless videos on how to set up DIFFERENT filters (since i cant find info on this brand ANYWHERE), and it appears i've set it up correctly, the impeller spins, the motor runs, however, when i put it in the water, it doesn't pump. No water comes up the tube whatsoever, and when i take the tube off, the impeller doesnt even visually circulate (bubble) the water at all. Is my motor shot? This is my aunt's from when she was my age... 20 years ago. She's used it since then, but i'm not sure how long ago. I've poured water in the back for hours, let it run, poured water in, let it run, and still nothing.