My experience has been that the pot definitely does stratify. A couple of
years ago, we failed a solder analysis (not even close to the requirements).
When we started asking questions, it turned out that the operator dipped
shallow from a static 800 pound pot. We ran the wave for 15 minutes and
dipped deeper - presto, the solder pot passed with its usual numbers. After
that, we beefed up the work instructions for taking samples.

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