My sister has a GE 940 Potscrubber that was purchased new in 1985. The thing has hardly been used since that time and is still like new inside and out. I run it now and then to keep it limber. This past Saturday I opened the door and found water in the bottom of the tub. That actually wasn't the first time I've found this condition in the recent past but previously didn't give it that much thought. I ran it through a Rinse & Hold cycle and after it finished there was no water to be seen in the tub. Yesterday I looked inside and found water a little above the sump area. The water level was higher than that Saturday. Only thing I can think is the fill valve has developed a slow leak? I didn't think to look for any trace of water just below the fill hole. Any thoughts?