when i got my mk1 RS it hadnt had the fluid changed and was very very black, i had it replced but now its gone blakc and steering heavy again,

question is do you think there was still some crap fluid in the pipes etc as garage only sucked out the cylinder and didnt "flush" all the pipes?

how is best for me to change it and completly empty n clear the system??

drain the cylinder and run the car with the pipe off constantly pouring fluid in until it runs cleaR?