Came home to enjoy a pint of my new Wit only to find the beer kinda flat; so put it back on force carb. What's that hissing noise? Oh crap, coming from the in post. No worries, just put the disconnect on it. Close kegerator door; 10 seconds later, FWOOOOOSH SNAP oh crap! Poppit failed catastrophically and beer was creeping up the co2 line! Got the tank shut off, everything disconnected. Didn't have any new poppits handy so cannibalized one of the empty kegs for that one. Put back together, back on force carb, and now holding. Explains why my 20lb tank kicked about 2 months earlier than it should have, fortunately had a spare. If for some reason this one goes south I've got my 5lb full, and will go get the 20lb exchanged next payday. Arrrgh. Gonna order some new poppits in the next couple days.