**EDIT** Over the last day it’s frozen here so I drained down again, upon refilling I tried filling the boiler with the hot tap open, this was a lot better, no massive airlock, it does take a fair while to prime from empty though so stick with one tap at a time.
In preparation for using the van this year I show you how I refill the van with water and purge the system of air.
5 авг 2024