I cleaned the bottom tray of my LG 9200 yesterday, but am confused by the cleaning directions I read in the directions. The LG's directions said to "rinse with anti-bacterial" soap. But my old hova-bator (long gone but the directions stayed) said NEVER use abrasive cleaners or soap because it could cause the trays to leak? I went with the LG's directions, and rinsed the tray in the shower, than added some dial hand soap and gentling rubbed it into the dirtiest water well--then I thoroughly rinsed it with water. SO MY QUESTION IS WHAT IS THE BEST WAY TO CLEAN A STYROFOAM INCUBATOR??!!