Hi guys, I really hope someone here can help me. Ok so I decided to put a fountain drink machine in my house, so I purchased a 6 drink soda dispenser with a mccann carbonator. I connected everything and turned it all on, purged the tank just like the directions said to and once the carbonator turned on it would not turn off so I rechecked all connections and found a small leak in the tank were the fittings are welded on the tank, so I thought I had found the problem. Purchased a new tank off ebay connected it, purged it, no leaks, But it will not shut off either. I let it run for 3 minutes and unplugged it because in the setup instructions it says do not let it run longer than 60 seconds.. What am I doing wrong??