Sorry I forgot to mention the 'notch' on the multi - above the inlet/ outlet ports! However, you figured out that your orientation is 180* different from what the valve says (backwash is filter, recirc is waste, and closed is rinse) - you turned your SP710XR50 into a SP710X50, i.e. a sand filter multi LOL.
If you can get a decent price on the 715 (2") multi - it might be worth while to switch the valve and upgrade the filter pad piping to 2". Just a thought.
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