This is one of those jobs I have put off for a while as I just don't know where to start, however today after I made my wife's morning latte, it carried on hissing even though the toggle was in a neutral position.
After playing around with it a little, I managed to stop the leak, but decided it was nigh on time to start working out how to go back to as close to OEM as I can.
On to the pics:
This is the machine in question

One image of the added monstrosity:

And another, face on
Looks ugly compared to the original doesn't it?

So any suggestions on where I should start?