Does anyone know how to completely remove the top off of the tank?? Cause the tubing from the return pump to the outlet nozzle fell off while I was at work. so about a 1/3 of my water from the tank got shot out through the cooling fans and now my light wont turn on. I can get my fans to turn on, but not the light and both are on the same switch. so if anyone can help me out that would be great.