Need help with starting the Emperor 400. I have 75 gal tank, with about 45 gal of water, for 1 Red-Eared Slider (RES) & a Fluval 4 Plus submersible filter. The Fluval didn't seem to be doing the job (cloudy water) & the Emperor 400 was highly recommended so I bought one. The problem is with getting it primed. I followed the instructions & that didn't work. I took it apart to make sure debris was not blocking the impeller, etc. I bought it at a PETsMART & one of the employees told me it could take a day before it's fully functional & that I would have to "be patient" & let it run. I'm concerned that the motor will burn up if I do that. The intake tube is submersed in about 5 inches of water, but it's not filling with water. This is the 2nd one & I'm beyond being frustrated with it. Any help would be greatly appreciated. My RES would appreciate it too.