newstarnord wrote:Alright I'll watch this.
But there is 6m of static height so 0,6 + 0,2 rounded to 1 bar = 1 bar pressure of the expansion vessel (house with radiator at the top and boiler at the bottom; the heating circuit is only on only one floor). Or 1,2 of installation pressure.
And when I was at 1,5 bars I had this phenomenon except that the pressure increased abnormally to 2 bars with the old expansion tank (which was inflated to 1 bar I believe). This old vase was over 12 years old, I thought it came from him.
And in fact the phenomenon is not localized to a precise place it "resonates" everywhere in the pipes.
Yes, I don't think that's the problem either (localized cavitation in the circulator), but it's one of the easiest hypotheses to rule out or confirm, hence the advice to try in the current configuration , with an operational expansion vessel.