Slow Cooker Pulled Pork

I found this recipe on allrecipes.com. I made this for Father's Day and it was such a hit that I made it again less than a week later. It says it feeds 8, but with 2 lbs I think it's closer to 6.

1 (2 pound) pork tenderloin

1 (12 ounce) can or bottle root beer

1 (18 ounce) bottle of BBQ sauce

8 hamburger buns

Place the pork tenderloin in a slow cooker. Pour the root beer over the meat. Cover and cook on low until well cooked and the pork shreds easily (6-7 hours). Drain well. Shred pork then stir in BBQ sauce. Serve on hamburger buns.