as soon as the boiler fire up water runs out of the expansion pipe. i have to toop up the system every day. i would say its loosing a good cup full a day. i've had the pressure release valve changed no difference. i've been told that the boiler has a tyre valve or similar and that i should check the pressure on this and it needs to be around 8lbs pressure. should i do this?

Roger Puckey, November 2008

hi there it could be that the hose going to your expansion vessel may be blocked try this.

rob, November 2008