Crockpot Roast

I know, I know.....ANOTHER crockpot roast. There are thousands of differing ways to slow cook a cut of beef, and here is 1,001. I am in the midst of trying to find a recipe to cook for our ward Christmas party and will probably be posting a few different recipes throughout the process. Here is attempt #1: good and ridiculously easy, but won't be used for the party. It turned out more "sweet-n-sour--candied--bbq" than I was expecting. I am looking for something I can stuff into a pita pocket with tzatziki sauce, so if you know of a good recipe, please pass it on!

Crockpot Roast
(thanks to Joy Park)

2-3 lb. rump roast
1/2 bottle Russian salad dressing (can not be substituted with anything else)
1/2 bottle bbq sauce

Put the roast in the crockpot and add about 1/2 c. water. Cover and cook on low for about 8+hrs. At about hour 6, dump water and add salad dressing and bbq sauce. Cook another 2 hrs. until meat can be cut easily or shredded.

(Obviously, all ingredients can be adjusted based on need and preference--just make sure you have equal parts salad dressing to bbq sauce).