I have just been out and removed the venerable clothes peg from the boiler drain point, opened the taps and cleared the lines out of water. I won't bother with the fresh tank as it is full of water and would make a big wet mess, the waste tanks are empty already.
I suggest you all check it out and do the same to stop the water going hard when the temperature goes down.
I suggest you all check it out and do the same to stop the water going hard when the temperature goes down.