Just a word of warning for all you DIYers. Most of the Stainless
Braided Flexible Hoses obtainable today, and certainly the imported
Chinese ones, have been found to harbour bio-films and thus legionella
by the Water Advisory Regulation Service. The WRAS Approved ones have
been tested and do not support legionella. I must put my hands up and
admit I sell WRAS Approved hoses but I do not want anyone to get
Legionnaires Disease thro ignorance.

A hospital in the West Midlands and Student Accommodation in East
Anglia have had all the non WRAS approved Flexible Hoses removed due to
health risk.