I just picked up a Â½ keg from an auction and will turn it into my primary fermentor. I have been reading a ton of good stuff posted on transfers etc. Has anyone installed a ball valve on the bottom of the keg? MY thought is if this is large enough, but still shielded by the bottom ring, it could be used to dump trub and yeast and help with cleanout when empty. Obviously it would have to be raised of the bottom to do this. Any thoughts?
I often use a Sankey keg to ferment brews. I've tried three options.
1) The obvious is simply removing the valve and inserting a standard #12 plug and air lock. No trub removal or yeast harvesting.
2) Same as above but using a brewers hardware tri-clamp with thermal well, blow off tube and pressure fitting. This is my prefered method. When fermentation is complete, I use a solid tri-clap car to seal the keg and force some natural CO2 back into the beer.
3) Invert keg, (I put mine on a storage rack so the top is 5ft off the ground) - using 2'' tri-clamp NPT threaded into a ss ball valve. I drilled the botton of the keg and inserted a plug/airlock.
Option 3 allows for the trub to be dropped but certainly not as well as a 60deg conical. However, it works fine for homebrewing. The downside with option #3 is that it's a real goat-F to try to get a fitting near the airlock that will allow you to hold pressure. Think Better Bottle w/o any good way to hold a ss nut.