Thank you everyone for your advice.
I took the camper to the dealer to check out and it was a good thing I did. They found that there was a kink and hole in one of the tubes leading to the freshwater tank. I believe the fellow said that it was the vent tube and that most likely was the source of the water and not the fact that I did not close the one valve. They had to take the plastic membrane off of the bottom of the camper to get to the tube to fix it. While they did that, they checked the insulation which was not wet which is a good thing. They repaired the tube with the kink and reinstalled the plastic membrane, pressure tested the water tank and put a dehumidifier in the coach overnight. I am very relieved to have the proper repair done so I am ready for my next adventure.
Thanks again to everyone who offered advice. It was greatly appreciated. Happy trails to all
Dave