If your fresh water tank is not filling up, there are a few possible explanations. First, check to make sure that the water pump is turned on and that there is water in the holding tank. If the holding tank is empty, it will need to be refilled before the fresh water tank can be filled.
Another possibility is that there is a leak in the fresh water line or at the connection between the fresh water line and the holding tank. If you suspect a leak, turn off the water pump and check for leaks at all of the fittings and connections. Once you have located the leak, repair it with a new fitting or gasket material.
If your fresh water tank still will not fill up after checking for leaks and making sure that the holding tank has enough water, it is possible that there is something blocking the flow of water into the fresh water tank. Check all of the valves and fittings leading to and from thefreshwater tanks for any blockages or debris. If you find anything blockingthe flow ofwater, clear it out so thatwater can once againflow freelyinto your freshwatertank.