Can I just run hot water through the tube and airlocks and bungs, and then use the sanitizer before using them? I've washed my buckets and jugs with a little dawn dish soap and rinsed very well, numerous times. I just don't want to put soap in the tubing. Also, do you use water in your airlocks when they are in use? I've seen videos where some people use vodka or even the sanitizer solution. I don't know why anyone would use sanitizer solution in an airlock.