Many thanks.... eventually getting round to it.
I take it a glowworm disconnector 801673 would also do:
http://www.ebay.co.uk/itm/glowworm-disconnector-801673-/281093163780?pt=UK_Home_Garden_Hearing_Cooling_Air&hash=item4172754b04
What would I need to do to fit it?
I have a Glow Worm 30CXI Combi Boiler and noticed its leaking over the last 4-5 months. Its a drip every 10 minutes or so but leaves quite a puddle after its left for a while.
Im sure the place where its leaking from used to have a cap on it but i am not sure, If it can be confirmed that...