Wisconsin, thanks...that's what it was...I got out there with a flash light and had the kitchen sink water running. The valve and water line from the valve were vibrating all over the place...I'm ordering that valve now. Unfortunately, that makes the smoke and smell issue even more frustrating. I have a vertical entertainment center, the bottom one is not accessible from inside and is where the water pump is located. The next one up is just an empty storge compartment inside. That is the one with the odor but there is nothing electrical in it, not even a plug. The next one up is where the dvr and dvd player are...no smell there nor in the tv compartment next one up. Any ideas would be appreciated.