Cloged chillzilla

I have a chillzilla that was given to me, that was cloged and partially cleaned out. The think hasn’t worked right since. I’ve tried everything but pbw and it still won’t come out. Has anybody had any luck unstoping one? I don’t want to throw away a free 200 dollar chiller.

Pick up some 100% lye (drain cleaner) at the hardware store.

viewtopic.php?f=5&t=98527&p=880065&hilit=drain+cleaner#p880065

…And if you do get it operational again…back-flush after every use.,