Xantia-brake pipes my no9 needs replacing

[c.morewood]

I've got a couple of threads running this subject.. I've just seen citroenxm' s reply I'll copy it here

"Ok. Im fairly certain theres only 4 front to backs. 3x 3.5mm pipes and 1x 4.5mm and a plastic low pressure return.

a 4.5 pipe goes From the abs block to the rear NEAR SIDE K joint.
a 3.5 mm pipe goes from ONE of the joins on the bulk head for the brake valve to the rear height corrector
A 3.5 mm goes from the height corrector to a push fit return at the front just below the lhm tank
A 3.5mm goes from the safty valve to the OFF SIDE K joint to feed the suspension.

The 6.5 is a plastic low pressure return line"

I hope this helps