help!!! ive had my dockland porter in the FV for 3 weeks now and the reading just wont go down. its still at 1.009 to high to bottle. plus it smells like vinegar. I don't know where I went wrong ive had it tightly coverd with a airlock fitted and it was bubbling away nicely for the first week. is this the end of my brew!!! any advice would be great.