Before you take the barrel apart you need to number the barrel because it makes it a lot easier for puting them back together.

When you take the barrel apart you can put rows of 5 on the wall so when you go to put it back together you know where the next one will be, and if they fall that is why we number them.

When putting it back together you start on 2 and keep putting it back together the whole way round until you get back to one one should be the one with the bung hole.

 The number one should be the one with the bung hole and since it is the hardest one to put in because it is last you have to hammer and kick it into place.