How bad is this? Should I change the solution (lack of). I'm trying to avoid getting air into my batch. Or is it okay for beer to be in it? Thanks a gazillion.
Thanks for any replies.
I'd err on the safe side and swap it out. Just grab a solid bung (rubber stopper), sanitize it, and swap the two out while you clean, sanitize & refill the airlock. Beer in an airlock can harbor nasty stuff if its left for too long.