Whenever we go to the races in Joliet I travel with water tanks full only a 20 minute drive and buy water only if we run out. Headed to the race in Sparta KY about 6 hr drive no water hookup at CG bu...
I always fill my freshwater. Several reasons. It adds some tongue weight and improves ride on my one ton. It lowers the center of gravity of the trailer making it lean less. I don't like travelling with partially full tanks because the slosh of water makes a difference on windy roads.