So I've finished building and plumbing all the components of my rat rack... except one-- the connection to the reservoir. I bought this from AGselect thinking it was what I needed to go from the water bucket to the 3/16" flex tube...
http://www.agselect.com/ED/showdetl....ID=52&CATID=10
Did I buy the wrong piece? I can't figure out how to mount that into the bucket...