I am new to travel trailers. Mine got delivered yesterday. Today the carpet under the dinette and sofa are flooded but I can't tell where the water is coming from. My landlord hooked it up to city...
Turn off the water supply if you haven't already done so. Look for leaks in the water lines inside cabinets. I don't think it's the fresh tank, because if a check valve in the pump failed and was filling the tank, the overflow should come out the vent at the fill port (on side of trailer). Other folks may have additional ideas.
BTW, the tubing used for water lines in TTs cannot handle water pressure from many municipalities, and a pressure regulator is always advised on the hose.