Question, I filled my water tank before I left for dry camping w/no hook-ups-and dough-the water wicked out of the faucet and all over the floor while I was towing my pup to my campsite!?! On the bad side, some of my newly reupholstered couch cushions got stained, on the bright side they got stained by me so the kids are off the hook to get any grief for sitting wet sandy lake/river/beach bottoms down on mom's newly upholstered couches...so I'm thinking there has got to be a way to filler' up with water w/o having this happen, maybe there is a check valve I can plumb into the water hose like on a fish tank? Even those leak a little, maybe just a ball valve? What dose everyone else do to prevent this? Thanks!