- http://brulosophy.com/2016/12/22/brublaster-keg-carboy-washer-do-it-yourself/
- https://beer.thegremlyn.com/2017/03/15/i-built-a-keg-washer-you-should-too/
- https://www.homebrewersassociation.org/pimp-my-system/matts-keg-and-carboy-washer/
And a link to the ball washer head thingy.