system flush

Regarding: Clean sealed central heating system, powerflushed and inhibitor added a few years ago and system water still remains clear as tap water. Question: After cleanly installing a few brand new radiators with no flux, in reality is cleaner really required before fully flushing the system...

I just had a new boiler installed and have a concern over the system flush that has been performed. I had two radiators that were taken off the wall for damp treatment months ago. A few days ago, in preparation for the boiler installation, my husband has installed the wall brackets and we have...

Been doing minor work to my Central heating system consisting of replacing one single radiator for a double one (same width and height) along with refitting a another poorly fitted radiator which brackets were loose and wonky. When I drained the radiators, small black particles came out what...