Thanks for the reply they've put inhibitor in now but would you recommend that it needs to be fully drained and filled or it'll be fine now it's got the inhibtor?
I've got a combi boiler and radiators that were fitted a year and a half a go. I went to bleed the radiators and brown water started to come out. I've been told by the guys who fitted them that you have to expect some discolouration from the steel radiators. They came round and put some...