Jo asked ... How to engage clutch on old sewing machine to engage needle?    |    Jacky asked ... Miele Vacuum cleaner?    |    Ben asked ... Toyota Yaris French or Japanese?    |    Andy asked ... How can I mend my MacAlistair 450w hedge trimmer?    |    Felix asked ... Hitachi vt-m70em?    |    Click here to ask your question

HOW MUCH AIR TO PUT IN EXPANSION VESSEL? POWERMAX BOILER?

I have a Powermax 155 Combi which loses pressure a lot. Ive heard that if you pump up the expansion vessel then this might stop the loss - but how much air do I put in?
Mike, November 2008
Before you do that check for water in ex vessel tyre valve if you have then get a new one.

daz71, November 2008
Doubt if its the ex vessel. But if you really want to, use a tyre pump. pressure approx 0.5-1 bar. make sure you have depressurized ch system first and leave drain cock open to allow the water to escape when pressurizing vessel.

daz71, November 2008