Slow Cooker Hearty Steak And Potato Soup

1 lb.. boneless beef round steak
1 lb.. red potatoes (4 cups)
1 cup celery chopped
1 cup carrots chopped
1 cup onions chopped
2 cloves of garlic finely chopped
1 tablespoon of beef broulin cubes
1/2 teaspoon pepper
4 cans beef broth (small)
1/2 cup water
1/2 cup flour

Cut beef round steak into cubes.. Mix everything together...
Except water and flour..

Cover and cook on Low for 8 -- 9 hours..

Mix flour and water..Slowly pour into cooker..
Increase to High for 1/2 hour..