"kev007" wrote:
I give up! I'm trying to find a "joining piece" to attach the length of
waste pipe coming out of the back of my washing machine to the
extension piece I have just bought. They don't seem to exist. Tried all
the usal suspects - screfix etc. Any ideas?

Do you mean you want to connect the existing grey ribbed waste hose to a new
length of grey ribbed waste hose?