[davidcalgary29]

Pics of beverage dispenser build. White object (pic #3) is finger of latex glove cut off to provide sheath for airline over spigot seal; it's the last finger I placed over the joint. The others are underneath that one, teflon-taped and sealed with aquarium sealant. Pic #2 is a sample placement of the filter, which does add mechanical filtration and provides some turbulence (and airflow). I still haven't decided if I'm going to add this or the airstone; the filter is kind of clunky.

And yes, it's pretty obvious that I haven't added heating to this unit. I thought I'd try my luck with an ambient temperature build. I've got some research to do with livestock that prefer cooler water temps of about 20-21C.