JUST BOUGHT THIS BOAT..LOOKING TO TAKE OUT SOON...WHEN IT STOPS RAINING....

pLUMBING FOR THE BOAT...??????

THE CENTER PLUG IS THE MAIN BOAT DRAIN??

ONE TO THE RIGHT IS FOR THE FRONT LIVEWELL DRAIN??  

THE OTHER TWO OPENINGS ARE FOR INTAKE TO BAke and front livewells???

Is the a web site shows a diagram of the plumbing???

Does both plugs need to be in while the boat is in the water???

You definitely want a plug in the hull drain  , otherwise when you launch that boat for the first time you'll notice things getting rather damp.  No need to plug anything else.

I'm not 100% sure on a Ranger but I'm sure one of those holes will need to be plugged up.   ;D

BTW, if you can see down into the bilge area you should be able to figure this one out.  I'm betting this boat has dual livewell pumps so that takes care of 2 of the inputs, then you've got the drain hole and finally the other one is probably the LW overflow.