Baxi Combi 105 HE.
I`m regularly having to re-pressurise my system but not sure I`m doing it correctly.Can anyone give me instructions please?
Also,when the boiler is on,the copper overfow pipe, which vents to atmosphere, is constantly dripping.
Tks

Bob Vince, December 2008

Sounds like your problem is the pressure releif valve letting by, that is what that copper pipe is joined to, you can sometime stop them dripping by twisting the red knob and letting the water flow through it, if that does not stop it dripping then you may need to replace it. Hope this helps.

Martin, December 2008