My 2206 towlite had a thin gauge alumium cover over the batteries and pump which was dented and hiting the protective covers on the batteries. With scrap metal I had, (cheaper than alumium diamond plate) I used 16 gauge galv.metal and claded it with baked on color 24 gauge metal roofing material. I removed all of the alumium rivets and replaced them with stainless steel rivets. I also notched and hemed the edges around the WDH brackets that bolt to the frame so the cover sits flat.