flushing

Hi, I recently installed a new rad and was going to add some inhibitor in the system when I realised the water was very dirty with particles in it. Although everything seems to work ok, I want the system to be set up right to limit the possibility of issues in the future. The products I have...

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...