I use a bucket as opposed to a carboy for fermentation and in the past had pitched the yeast and then shake the hell out of it to oxygenate. However, out of concern that that menthod really didn't generate enough oxygen, I purchased a tool that attaches to a drill and essentially stirs the beer very hard. Theoretically, this was a better method to oxygenate. However, the last batch after 5 weeks in the fermenter had not fully fermented and ended up overcarbonated in the bottles. I should have taken a final gravity reading before bottling but didn't because I was confident that after 5 weeks it had to be finished. So now I'm onto a new batch and it has been three days and I am not yet getting any airlock activity. I'm beginning to think that this areting tool isn't doing the job. Is it to late to shake it? Do I just need to be patient? Let me know what you think?