I’m sure a Vegas/Axis owner will jump in here with specific help. Generally though the tank drain valve is, not surprisingly, somewhere along the base of the fresh water tank. On many coaches you’ll find it inside under the bed or a dinette seat but I don’t know where Vegas’s water ants are so can’t be more helpful. If the valve is damaged it is not difficult or expensive to replace. Of course you have to find it first.....
If this valve isn’t the problem there is another possibility that the water is coming from a low point drain. It’s a similar valve that might be a bit harder to locate without another owner’s help.
Did you perhaps have your coach winterized and are you now unwinterizing it?
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