Opened the camper on Saturday to strip out the bedding. Found it was a bit damp, with some mold on pop top/canvas so popped the top and opened the windows to dry it out. I suspect its mostly condensation, but I found a wee pool of water at the back by the tail gate. The seal is good but the wiring grommit on the top of the tail gate is missing, could this be the cause of the water getting in? It pissed down yesterday afternoon, but no sign of any water inside this time, just to add to the confusion.