Question on the mini-keg bungs people are buying -
Seems like Midwest is one of the few places carrying these. Do these come with a solid
stopper insert (the 1/2" diameter white piece) , similar to this pic from Midwest? I have one of those in my stash, and another that is hollowed out, maybe 1/8" thick walls, but a similar hard nylon-appearing material. But I don't recall if they came from purchased mini-kegs, or from purchased replacement bungs.
I ask because I have an idea for using these plugs for a super-simple tap design. Similar in some ways to the two holed rubber-stopper design I used (see thread here)
(which has been working well for me), but without the need for any hold down brackets. But I want to make sure they can be sourced before I play around with them.
On a related topic, I mentioned before that the side/bottom tap can be removed and the replacement bungs will fit in the hole just as they do the top. This makes it so much easier
to inspect, clean, and dry the mini-keg (and makes possible the design approach I'm trying next). I forget just how I removed the first one (it was a mini-keg with a round looking tap insert), but I don't recall having much difficulty. I did two more recently, where they have a more rounded-triangle looking insert for the tap. They came out, but I kind of brute-forced them. So I just tried with the last one I have, (a round style spigot) - I just extended the spigot and pushed it to the side a bit and worked some keg lube into the junction and twisted it and pulled and just kept doing that all the way around. Pretty soon, it just popped out, no trouble at all. I think the triangle style would come out almost as easily with help from the keg lube. [UPDATE 18FEB2012
- Yes, the more triangular looking ones come out easily also. Just keep prying to the side and working keg-lube in, and working it around, and twisting it. I took my time to avoid bending the metal, and after a minute or two it will pop out pretty easily]
Here are some before/aft pics, and using an inspection flashlight to peer inside (you can see some plastic bits from the removal), and a pic of another mini-keg with the bung in the bottom port (hydro tested to 35 PSI).
After inspecting one old cast-off mini-keg I was given (it was sitting on their shelf), I can now see that it has a fair amount of pitting inside (it probably wasn't cleaned all that well before it was put on the shelf). I'll either use that for experiments, junk it, or maybe just try soda water to see if the pitting has any effect - maybe it's OK for plain water?