yes Greg, but let me pose a scenario.
Said GFI trips while the spas aren't even in operation
Naturally one would wonder about this.
Consider all ECG's and GEC's could be (and often are around here) married to the panel MBJ noodle bar
I suspect this is why the nec put (the old) 250.32B out to pasture, but the same phenomenon that inspired them to do so can still exist bettween dwellings, and even within dwellings.
consider, for example the old 3 wire dryers and stoves which bond noodles to their shells
~S~
