I've only owned my trailer for about a month so I haven't totally figured everything out yet. In the picture below, I know the drain to the right is obviously my fresh water tank - what are the two side by side drains on the left?
One is cold water, one hot, for draining water line during winteraztion. Be careful and watch for o-ring on cap , I opened mine and closed it right after purchase to check everything worked, put cap back on and it continued to leak found o -ring on the ground, reinstalled no leak.