Wet - in carpet between bed and closet.

[kdc1899]

Hello,
I have a new Wildwood 408 REDS. The past 2 weeks there has been a constant wet spot on the carpet between the bed and the closet. Roughly 1 foot deep and 3 foot wide. The electric hot water heater is behind a wall panel left of the closets sliding glass door. I take off the panel and there is no wet spot in the carpet anywhere in the area of the hot water heater and there is no water or moisture in the hot water heater tray. There is a (fresh water) ( ?? ) tank directly below the "leak". I have city water and when I open the drain under the trailer for this translucent white tank, no water comes out. Can't figure it. I have 2 toddlers sleeping in this room and fear mold spores being an issue soon.
The silly 5 year "service" thang may prove usefull if I pay someone $$$ to tow this beast 2 hours to the nearest dealer ( this is a stationary unit I use for temp housing for the 6-8 weeks I am in the field) but I guess I have to pay first and then hope for a refund (my bad for falling for this "warranty". Should have known better than to trust a salesman; even one of Warren Buffet's employees).
I'll have to take care of this myself (with y'alls help; hopefully).
Anyone have an idea on where to start?
Thanks
KDC