Right, you helpful bunch of gits.........

Me and my 'assistant' have been pumping for a good hour and there appears to be no air coming out of the system. BUT the pedal is still spongy as fook.

When doing the fronts all seems fine BUT when doing the rear's (usual two man method) apparently the pedal is really stiff going down (with the nipple open obviously). Now, I'm doing it with the car in the air, it has been suggested to me that there could be a bias valve in the rear system which requires bleeding with the rear wheel's on the ground, but I've traced the lines and can't see anything.

Also, very worrying, when doing the o/s/r there's a funny noise with every 'flush', only way to describe it is it sounds like there's gravel in the lines , there's definately no crap got in the fluid before anyone suggests it.

I'm on my own now so can't do any more but any advice would be greatly appreciated for tomorrow, if not I'll have to take it to a garage, which I really don't wanna do.