Good hearing from everyone regarding this and thanks for the compressor suggestion Pawtucket Pat. I talked with the owner last night and we are looking at the pros and cons of going straight CO2 versus adding an air compressor for purging the kegs to clean. Using just CO2 would mean one less piece of equipment to obtain and set up. However, we are looking what will be the most cost beneficial in the long run. Sure we could spend X on the compressor and such for the utilities to run that, or we can go all CO2 and just have our tank refilled more often. At some point the cost of one over the other will offset and we are trying to get info on that part of it to make the overall decision. Anyone have any insight as to how much CO2 we might go through for each round of cleaning? Not looking for absolute numbers just ball park since it all depends on how many kegs and which size they are. Again, thanks for the assistance here.