Hi, so no water coming through the valve from the fresh water tank is why the pump is running continuously. You could try blowing air back up into the fresh water tank (short shots via lungs or low pressure air compressor) to try to break up the blockage. After each shot try to let any flow bring out the bits. Let any bits flow out on the ground if you can extend the water line out that far. It might be worth draining the tank through the blocked/reflowing line to try to ensure all pieces are removed if possible. Then reconnect to the pump filter; refill the FWT and try the pump again.
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