Had a leak on my boiler for about a year now and finally discovered that the drain off point on the boiler itself is leaking. Having watched it tonight it apparently just splutters small amounts of water out after for example using our power shower but recently I've noticed large amounts of water having come from the boiler and it seems to be coming from the same point. The pressure in the boiler has always been extremely low ever since it was fitted and i regularly have to fill it via the filling loop but now the problems got so bad I need to sort it. Any advice would be much appreciated. Cheers, Mark