If your fresh water tank is 1/3 full and the pump is running you should be running water at your faucets. If none of the faucets work I’d find and examine the pump. There might be a kinked hose (in or out) or there might be a filter or valve clogged with debris. If your coach is new this would not be especially unusual. You’d think not but sometimes it seems to be up to the owner to make even new things work. Did you do a pre-delivery inspection with your dealer? Did it work then?
There most likely is a valve near the inlet side of the pump that also could be the culprit. It is there for winterizing (to draw from a bottle of antifreeze instead of the water tank). If it was left in the wintertime position that could be your problem. Good luck. Lots of great people here that will be glad to help.
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