I think I purchased the original electronic gold tester the day they
hit the market. No more nitric acid, they were great. Many, many
years have passed and I think I’m on my third tester. The weak link
in all of these is the gel tube. I store them in the refrigerator,
religiously clean the tester after each use and still, they clog up,
leak and the plastic threads strip in the tubes. These are really a
pain. I have spent far more on these troublesome tubes than I have
spent on the testers themselves.
Can this magic goop be purchased in bulk and somehow do away with
these nasty tubes. What is your solution?