Quote Originally Posted by Pat Vegas View Post
and dishwasher into the same water supply under my sink.

Does it exist? what would it be called.

I have the hot tap unused but I don't wish to attach the dishwasher to it.
What do you mean 'a device'? You simply plumb them in using those self-cutting valve chappies. Couldn't be easier*.

*Based on one successful experience plumbing in a dishwasher.