Wondering if the closing gate can be rotated 90 degrees on a Jandy valve (take off lid, rotate 90 degrees counterclockwise and reattach). See attached pic. Unless I am missing something, I would be unable to run the spa only, and therefore only heat the heat the spa (when heater is installed), with the current valve setup, as the inlet cannot be shut off. It looks like the pool skimmer cannot be turned off and I would also be unable to shut off the MD.