Good evening dear community. Since March we are proud owners of a Peugeot j5 RV. Before we go on the 17th on holiday I tried everything again and noticed that if I change the pump switch for the water. The water comes out under the RV. That would be the overflow. Is there a switch or valve that you have to press before to pump in the other direction. Or can it be that the predecessor has connected the hoses upside down? Pump was dry for a short time and in the tank I filled only about 5 liters. Greet Kevin