I started brewing my first beer about 5 days ago. I am using a 5 gallon bucket system with a 3 piece airlock. After adding the yeast it bubbled like crazy the 2 days and now its not really bubbling at all. I checked my seal and everything is tight. When I press on the lid it will force bubbles through. I forgot to take a sample at the beginning so I don't have anything to compare the gravity to. Any advice or help is apreciated .