Hi
Thanks for all of your replies it turns out it was the plastic drain tap at the bottom of the rad.
did not see it until we took of the sump cover
bob
Hi
I am totally baffled by a problem that has recently occured with my H6 in that every now and again it will lose all its water from the rad with steam coming up.
This only happens occasionly and I cannot find any leaks.
Does anyone have any ideas of the problem
bob