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Ah, interesting to know about that the data, many thanks agin for explaining.

In the end I *think* what bought the rain to life was re-enabling the hardware processing within Weewx, I don't know enough about the way the Davis protocol and Weewx work to even begin to explain the reason - it works and that is good enough for me   

If nothing else hopefully these questions and answers help somebody else following in using Weewx with this great hardware