What I do, and have been doing since I started, is use my homemade keg and bucket washer with some Craftmeister brewery wash and clean out my keg. I will then take that and put it in my keg and run it thru my tap and lines as if I am serving beer. I then take warm to hot water and fill up my keg and do the same to rinse out the brewery wash. Once all that is done, I will then mix up some starsan, usually just two or three gallons and add it to my keg and run that thru the lines a few times to make sure it get's everything. With that said, I am sure a complete disassembly of my beer lines and tap will be in order the next time I empty a keg, but I am just kinda lazy like that. LOL.