Root Beer Pulled Pork Sandwiches

I don't know why I have never tried this method for pulled pork before but I will definitely be doing it again. It is so yummy! And sooooooo easy.
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2-3 lbs. Pork roast
1 liter root beer {or any other flavor "dark" pop}
1 bottle of your favorite BBQ sauce
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Put pork roast in crockpot and cover with root beer.
Cook on low for 8 hours or high for 6.
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Remove pork from crockpot and place in a medium sized bowl.
Pour BBQ sauce over pork and shred and mix with a fork.
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Serve on buns.