Thanks , I did think about this and perhaps that might explain the dirt being pulled in,but I can’t imagine why it wouldn’t do it on all the others?
pedal feel is ok but not as good as it has been in the past( hence the reason for a flush), although I’m getting a bit of pad knock back on track As I’m occasionally having to give the pedal a tap before a big braking zone.
I’ll try a new bit of hose and hopefully that’s all it is.