I just recently brewed my 2nd batch, decimation, the dogfish clone. About 3 days into it, it looked like it was going to explode and blow the lid off...i followed te directions very closely and the only difference between this and the first batch is that i am using a 3 peice airlock on this 1 and used a 1 piece airlock on the first batch...does theis have anything to do with the airlock? Was there a step i missed that caused this? My batch will still be good, right?