To begin with you say the make model and type of boiler and where the drip is coming from.
These things will give good hints to the people who know about these things (not me) and with luck you may get a helpful and sensible answer.
As it stands the only thing you can realistically do is to call for the services of a Gas Safe engineer - and he too will want the make & model.
Another question with more information would be a good idea,
Good luck...
Peccavi, July 2013
