So I finally picked up my 180 tank... but it was a saltwater setup so I now have to clean it. I got the glass clean but the overflows are filthy. I have been scrubbing the for about 45mins. I can't take it anymore. So I was wondering if I could "lighty" sand them to get the rest of the stuff off, OR I could use the strongest tip on my pressure washer. Which one does less damage. Thanks!!!
