Hi - First off let me just apologise from the start for being so completely clueless, using all the wrong terminology and for writing such a huuuge essay 
Ok heres the problem - just bought my first house and the central heating system is playing up - the boiler would come on for 5 minutes then switch off. I turned the pump off at the mains left it 15-20 mins turned it back on and it would fire up for 5 mins again then shut off. I had a chat with a few mates and the common concensus was it was the pump (don't ask me why) so I bought and fitted a new pump. Everything seemed to be ok all yesterday and last night until 7.00 this morning when it sounded like my house was being demolished - the pipes were banging like hell. This lasted about 10 mins then stopped so I just thought it was an air lock and I would bleed it out later. Then about 9.30 the overflow outside started pouring water out. I jumped in the loft and the ball thing in the smaller tank looked like a punctured football and was full of water. Ahhh just replace that and everything would be great I thought. I replaced it and bled all the rads and everything seemed rosy. And it was - for about 3 hours. The problem started when I turned the thermostat down in the living room. The pipes started their calypso band impression, the overflow started its Niagra act and the water tank in the airing cupboard seems to have taken on the persona of a steam train with water and steam pouring out of this little black plastic valve thing on its side.
So what I need to know is what on earths going on, does it sound dangerous and is it going to cost me loads to put right? The water in the little tank is boiling hot so could this be what burst the ball in the first place? Again I'm sorry this is such a massive post but any help/info/advice would be greatly appreciated.
Cheers
Jamie
Ok heres the problem - just bought my first house and the central heating system is playing up - the boiler would come on for 5 minutes then switch off. I turned the pump off at the mains left it 15-20 mins turned it back on and it would fire up for 5 mins again then shut off. I had a chat with a few mates and the common concensus was it was the pump (don't ask me why) so I bought and fitted a new pump. Everything seemed to be ok all yesterday and last night until 7.00 this morning when it sounded like my house was being demolished - the pipes were banging like hell. This lasted about 10 mins then stopped so I just thought it was an air lock and I would bleed it out later. Then about 9.30 the overflow outside started pouring water out. I jumped in the loft and the ball thing in the smaller tank looked like a punctured football and was full of water. Ahhh just replace that and everything would be great I thought. I replaced it and bled all the rads and everything seemed rosy. And it was - for about 3 hours. The problem started when I turned the thermostat down in the living room. The pipes started their calypso band impression, the overflow started its Niagra act and the water tank in the airing cupboard seems to have taken on the persona of a steam train with water and steam pouring out of this little black plastic valve thing on its side.
So what I need to know is what on earths going on, does it sound dangerous and is it going to cost me loads to put right?
The water in the little tank is boiling hot so could this be what burst the ball in the first place? Again I'm sorry this is such a massive post but any help/info/advice would be greatly appreciated.Cheers
Jamie
