Fixing the replacement water inlet socket, on the caravan. It's plastic, with a pair of contacts to supply the pump, a connection for the water inlet, and a NRV. The hinged cover flap, retains the plug in place, against the water pressure, except the hinge was beginning to split.
There are at least three versions of the inlet, cheapest lacking the contact and NRV, most expensive includes a pressure switch, then the one I needed in the middle cost wise. From photos, it looked as if they all used the very same main plastic moulding, and that was all that was damaged on mine, the hinge, so I took a chance on being able to swap bits over, to save £20 - and ordered up the cheaper one.
I just got around to fitting it today, and yes, I was able to swap the bits over.
In the process of doing that, I had to manoeuvrer the caravan away from the fence, so I tried to make use of the mover. That, I found, is misbehaving - master relay clicking on and off, when no buttons are being pressed, and when a button is pressed to move it, the movement is jerky, as the master continues to switch on and off. It's not the leisure battery, nor the remote control, nor a poor main 12v connection. It's not an out of range problem, because when out of range it just stops - so I need to give that some thought.