Hello. I have a Camray 5 boiler, one year old. On installation, it kept dropping pressure. The plumber who fitted it searched for a leak and couldn't find one (this is a seventies house that needed renovation (ie new boiler/rads/pipework upstairs). He concluded that it must be a leak in a pipe buried in the concrete floor - if it's leaking down/out it would explain why we couldn't find any tell-tell damp. He sorted it with the RadSeal stuff (can't remember the name. It took two goes, and we've had no probs since).
Two weeks ago, another plumber fitted a pressure regulator on the mains pipe. He checked the boiler pressure - 2 bar. Ten days later, the pump fried- no water pressure at all. He reckons the old leak has blown. As we can't find any leak, he reckons we'll have to repipe the whole ground floor - which seems incredibly expensive/invasive, and want to be sure it's the only option.
He didn't think it was a good idea to try the sealing solution again. Any ideas? At the moment, we're losing one bar every 24 hrs - and I'm just assuming this is a leak, despite no evidence of water. Also, am I OK to keep adding a bar of water to a closed system every day? I don't want to rust the boiler!
I'd be very grateful for any advice - I don't want it to get worse over Christmas! Many thanks.
Two weeks ago, another plumber fitted a pressure regulator on the mains pipe. He checked the boiler pressure - 2 bar. Ten days later, the pump fried- no water pressure at all. He reckons the old leak has blown. As we can't find any leak, he reckons we'll have to repipe the whole ground floor - which seems incredibly expensive/invasive, and want to be sure it's the only option.
He didn't think it was a good idea to try the sealing solution again. Any ideas? At the moment, we're losing one bar every 24 hrs - and I'm just assuming this is a leak, despite no evidence of water. Also, am I OK to keep adding a bar of water to a closed system every day? I don't want to rust the boiler!
I'd be very grateful for any advice - I don't want it to get worse over Christmas! Many thanks.