I am looking for opinions on the viability of this as a 2nd primary fermentor. We have them on clearance at work, and since beginning brewing, it clicked that I might be able to use this for a larger primary. I have calculated a 10 gal. capacity based on my measurements, but am looking for ideas as to what to do with the two holes placed on the side of the unit. I guess I could get an airlock in the top, but what do you think about the bottom hole?