Anyone know what the "fins" on an old dolphin are for?

doncaruana

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Aug 25, 2011
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Northville, Mi
Pool Size
15500
Surface
Vinyl
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-40
My Dolphin Supreme M4 has those black fins on one side, but not the other. In honesty, they may have never been there. Or they came off at some point. Does anyone know what they're for and why I would care about them? Or how they would impact it at all if missing on one side?

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My robot must not be that old! Let's see if someone out there can give you some information.
 
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