This is a pretty dumb question but here it goes. I have a kegerator with three taps. So far I've always had all three going at the same time. Now that my hombrew inventory is getting low soon I will have a tap that will be free unless I get a commercial keg (which I may do anyways). But if I don't hook something up to it what should I do with the beer line? Leave water in it after cleaning it? Or star-san? Will it dry up and crack if no liquid is in it? TIA.