I have a 250 that is 2.5 months old. This week a leak started beneath the powerbar area at the bottom, back right corner. There are three little holes there and water is slowly coming out of them. I pulled the powerbar out and you can feel the water below it. It is so much that I have to clean the floor up evereyday when I come home from work. I am also getting A LOT of salt build-up around the outside, bottom perimter of the tank where the black plastic meets the glass. Any help is appreciated.