RE: Tank cleaning wand - how much water does it leave?
After you use it stick your finger down the toilet and measure how far up your finger the water is. Then ask another neighbor if you can rinse their tank. Then ask a neighbor if you can clean their tank and do the same thing. Average the 3 readings. Then lick your finger dry and go back to your camper and have a very strong drink.
This type of response isn't helpful and causes people to leave this forum. Snarky at best.
RE: Trailer disconnected message on F150
I had the same issue with a F250. With trailer wheels removed, they found brake wire insulation had worn and shorted out.