There is some information needed that could help with your problem.
How large are your tanks?
How much volume do you run through your tanks? (how many sets of anodes have you gone through)
How many rinses do you use between your acid pickle and the nickel?
How do you create aeration in the tank; compressed air or pump?
How old is your brightener? Is it the NEW brightener or the old brightener? (I don't think the old brightener worked very well)
Ken
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