I did try opening up the autoshut off and looking inside, i might have reversed the membrain inside it by accident. But looking inside I noticed that one side of it is completely sealed off, it looks as if a piece of plastic has just got stuck in there, and I don't want to break it off cause I'm scare the auto-shut off will not even do its job then, and then it might over fill my tank...
Thanks for that link i'll take a look at that site to see if they have replacement autoshut offs
thanks
