Sorry folks, I was on my way to solving the problem until the company from which I've ordered the service kit and spare valve decided to put my order on hold due to an obsolete part number.

That's fine, but they've been extremely unresponsive in follow up after that.... It's quote annoying...

I could have gone with another company, but until now I haven't been in a big rush... If they don't respond by Wednesday, I'm cancelling my order and moving on.