Vibrating pipes

The Cleetons

We have an issue with the hot water tank filling. We have a truma system. It all works as it should with water getting hot and heating more or less consistent out of all vents. However after using hot water the refill causes incredible pipe vibrations. The pump was replaced and it’s no different. Sounds like an air lock but water is coming through as it should. Short of disconnecting all flexi hose and trying again has anyone had this issue before and any recommendations?