I did some searchin on the internet after having a similar issue when using Silicon hoses. I found a page that detailed the materials that were resistent to brake fluid, and found that EPDM rubber is one option. I then found that standard braded water hoses used for flexy connections in plumbing use this (well some do, it will say on the packageing if they use it) and I bought a length, choped off the ends, cut it in half and it was working fine, passed the SVA, but I've just changed my setup to use the Fiat Resiviour as it looks so much tidyer.