Have had a new 2013 Forest River Hemispere 312QBUD, same issue of little to no water in the fresh water tank after filling. Flows out the overflow/breather pipe and sucks 1/3 of the tank out. Wife upset and I am upset. Water tank fully inclosed and not visable or easily accessable. Talked to dealer where I bought this unit and was told that the p-trap creates a suction and will drain part of the tank. The dealer told me that Forest River knows of this 'problem' and have not delt with a fix.
I also was moving from one camp ground to one 50 miles away. filled up at first one and going out the drive way notice a trail of water coming from the over flow. Once at the next camp ground and turned on the water motor..... screaming empty.... ALL of the water had drained out of the tank. Thinking about putting a shut off on the breather tube to Keep The Water In the tank.....
There has got to be some fix to this. I never park in 'full' service of W/E/S. Makes me want my old camper back.
This was not my only 'issue' with this new camper. Slide out motor stuck/went out with the slide out 5 inches while at a camp site. Called dealer and was told there was no way to move the slide if the motor is jammed. Drove 75 mile back to the dealer with the slide sticking out the side of the trailer..
Also... with less than 400 miles on the camper I had a tire explode out the side... no tread problems at all, it exploded. I saw out my mirror the tire let go and was able to stop in a short distance. Outter tread was all intack and looked good. Problem #2 with the 'flat',
my 4/way lug wrench would not fit in the rim slots to get to the lugs. Not enough room for the 4/way to get to the lugs. Had a ratchet set and broke out the side of one socket (Craftsman).... my brother-in-law was behind me and had stopped to help.... he had a socket that fit and we were able to get the tire off with a lot of trouble.
My wife likes 'the room' inside.... me.... the jury is still out because of all of the issues that need to be addressed.
Not a happy camper.