My boiler keeps dropping in pressure, why is this and what can I do to resolve it

Adam Iles, November 2009

the pressure will drop for 2 reasons either a leak on pipework, radiator or from the blow off outside easy way to findout if its the blow off if its not dripping try putting a balloon on it and see if it fills with water if its not then its in the house or under floor

123, November 2009