A couple of months ago I had a new boiler fitted along with new radiator valves fitted onto the existing radiators which vary in age, (oldest is around 30 years). The central heating system is a sealed system which when needed, you have to top up the system via a loop valve.
The problem I've got is that I simply cannot get the system to maintain it's pressure with the boiler switched off. The system drops down to 0.0 bar within a matter of hours from turning off the boiler. The heating system is fine with the boiler on. I'm unable to find any leaks on any of the radiators or on the boiler either. I'm worried that I may have a leak under the floor somewhere but it's a ground floor flat and I'm thinking that it's a concrete floor. If anybody could help me with this I would greatly appreciate it.
The problem I've got is that I simply cannot get the system to maintain it's pressure with the boiler switched off. The system drops down to 0.0 bar within a matter of hours from turning off the boiler. The heating system is fine with the boiler on. I'm unable to find any leaks on any of the radiators or on the boiler either. I'm worried that I may have a leak under the floor somewhere but it's a ground floor flat and I'm thinking that it's a concrete floor. If anybody could help me with this I would greatly appreciate it.