One of my Rio power heads that I have in my sump decide to go out and smoke up the house. I was doing some maintenance when my lights started to flicker and all of a sudden I smelt smoke and saw smoke coming from inside my stand. I opened the door to see what was happening and I could see the pump sparking and smoking from inside the sump. Totally scared the poooopppppp out of me. Should I leave the tank off and do a 30 gallon water change out from the water that is inside the sump? or do you think the water is fine and I should let it be. So glad I was home when this happened.