Are Superchiller cores repairable or do you need to just replace them. Mine has a very slight (lost 3lbs. in 2+ hours) Didn't even realize it was leaking until I saw a very slight puddle. Should I risk trying a stop leak of some sort?
Thanks for your input.

I believe the general concensus is cores aren't really repairable. If you manage to do jerry rig repair in one t very questionable on weathe rot run it or not. After all if it started leaking badly it could cause your engine to grenade,