Hi, I have a single cold rad downstairs, I've flushed all the gunge out of it and system has had inhibitor over last year. All other rads work Fine and seems to get hot at copper pipes either side.
If I switch all majority of other rads off then it works fine.
When the rads off water runs clear from both feeds although appears 'foamy'
it did work fine beggining of last winter but got progressively worse. Could it be gunge in the rest of the system, an air lock or low pressure?
Any advice for clearing an airlock or good chemical for clearing gunge from the system?
Many thanks
If I switch all majority of other rads off then it works fine.
When the rads off water runs clear from both feeds although appears 'foamy'
it did work fine beggining of last winter but got progressively worse. Could it be gunge in the rest of the system, an air lock or low pressure?
Any advice for clearing an airlock or good chemical for clearing gunge from the system?
Many thanks