when you say you were hauling water are you referring to the fresh water tank being full? Or were you using the trailer as a cargo trailer and hauling containers or a bladder of water inside? What is the year make and model of the trailer? There has been at least one report on here in the past of a trailer tongue breaking off during use. Do you have the owners manual or other documentation that states that the trailer is not designed to travel with the tanks full? Did somebody from the manufacturer or dealer inspect the damage? Or was this overloaded determination made via email or a phone call?