normanandsue
Free Member
if run dry some submersible pumps (i think whale are one as it happens a lot on caravan systems) get a small air bubble in the impeller chamber and the cure is a few sharp taps on the pump body, or gently tap the pump on the tank wall, to dislodge it........if you can access the pump.
AS the tank was empty this seems a realistic diagnosis of the problem, but sadly I have no idea how to access the pump inside the tank I can't see how to find out if this is a solution, unless when driving tomorrow it will bang against the sides as we roll along.