BBQ Roast Beef sandwich

2 pounds of cooked roast beef

1 bottle (12 ounces) barbecue sauce

1 1/2 cups of water

10-12 sandwich rolls halved

Combine roast beef,bbq sauce and water in a slow cooker 

cover and cook on low for 2 hours

Remove beef from crock pot and shred with two forks.Return beef into sauce ,mix well .Serve.