A co-worker of mine had a roommate move out and leave his brewing stuff behind, including two 5 gallon kegs (pictured below). Co-worker ended up giving them to me for free.
Obviously you need a CO2 tank, and connectors, but what size CO2 tank and are the 'Ball Lock Connectors' the right one in general/these specific ones? Can I use the same cleaning/rinsing chemicals on these (PBW/StarSan)?
Since I am a complete noob to the world of using my own keg, what else do I need?