Hi Steve & Ian,
Looking at your hydraulics DVD I notice that, when installing the transfer pipe, Ian puts a strange looking white plastic washer under the O-ring of the stand pipe. I’ve never encountered this washer before and wonder why Ian uses it.
Both your DVDs are absolutely wonderful and I never fail to recommend them to anyone who reads my webpage.
The washer is the original fitting. It is called the ‘backup washer’, made from nylon and in a spiral shape it goes in the o’ring groove behind the o’ring. Its function is to provide a soft edge for the o’ring to press against, rather than the o’ring pressing against the hard sharp edge of the metal stand pipe.
Thanks for the DVD recommendations you give. I also point people towards your site so they can read your information.