Sodastream Terra stopped carbonating
I've got my sodastream connected to a 5lb CO2 tank, food grade, connected to my terra via a hose adapter on Amazon. Throughout my use it would form some weird crystals on the tip but those would break off and enter the soda, dissolve, nothing weird, when this happened the gas stream would slow but return to normal, no issues carbonating.
About a month ago it stopped carbonating, had very low pressure, I thought the tank was close to empty. Brought it into a place which told me it was still ~ 80% full. I gave up. Tried again 2 weeks later without changing anything, miraculously worked. I started purging the line after each use, thinking maybe the line was freezing.
Now it's happened again. I replaced the whole adapter, hose and all, no avail. Scoured YouTube and Google, took apart the front assembly and confirmed the foil piece is still intact. Gas tank is still weighing similar to before. Any ideas what I should do??