hi everyone. I'm having a strange issue with the electric water pump. I'm in the Kalbarri caravan park connected to the water tap and I've noticed that 1- pump is constantly running when all caravan taps are off and tanks full. This I overcome by turning pump off. 2 - when I disconnect water inlet hose and turn the caravan tap on, the pump whilst running is not pumping any water. Was working fine up until today. Anyone got any clues about where I should start looking? There's no leaks anywhere.