A friend asked me to post.
ferroli modena 80e combi
he had a cold radiator, so bled it, this worked ok and the rad worked,
however he noticed that the pressure had dropped in what I take it is a
closed loop. He then attached a pipe to add more water to the system, but
now finds there is too much in there. I think he said it should be 1 bar?
anyway, how does he reduce this? if he has to drain some of the water, how
does he do this.