I must have been VERY tired last night !! I completely failed to see that the second photo was from Mark in Iowa. On a shelf somewhere I have a couple of unused old stock hoses of the type used by the factory. They have a flexible ‘concertina’ section in the middle, allowing them to bend without kinking. If anyone knows where they could be copied in a modern silicone rubber I can lend one as a pattern. Mine are age-hardened and a bit perished, so unfit for use but OK as a pattern.
