This is more a curiosity than a problem but why is it that Jandy pool valve handles are positioned 90 degrees from the manner in which most other valves operate? The best example would be a Jandy 2-way valve, in which the valve is open when the handle crosses the pipe and closed when the handle is lined up with the pipe. That's exactly opposite of almost all other bar handle valves.
Seems like Jandy could have provided additional splines in their handles to allow for an alternate (standard) handle position, but no such luck there.
I've seen a few threads from new pool owners asking about problems operating their systems and sometimes I wonder if what they're saying in words ("I opened valve X") is really the case. Possibly when they say open, the valve is really closed and visa-versa.
Hoping to hear an answer that relates to early attempts at automation of ancient Roman baths or something like that!