Re-occuring Hydraulic Problem :(( Help!

[brummie3LV6xantia]

it has been in and out of citroen for the past 3 weeks and is making me tear my hair out :) if i can not get this problem solved i am prepared to change to a car without hydraulic. after 5 years of reliable ownership its on 142k miles the car still has life in the v6 and chassis, but i having lost PS, brakes and suspension 3 times on the motorway its too much of a risk with family.

 

the problem occuring is the high pressure line from pump to pressure regulator, 3 times it has leaked at the pressure valve end and once broke the bolt that holds it to the pump

 

any advice at all will be taken aboard at this stage... thanks