Chicken and Wild Rice Slow-Cooker Soup

42 oz. chicken broth
2 cups water
1 lb. cooked, chicken breasts and/or thighs, cubed or shredded
2 cups water
1 package long grain and wild rice with seasonings
1 cup chopped carrots
1 cup chopped celery
1/2 cup (approximate) chopped onion (optional)
1 tsp. dried parsley
salt & pepper to taste

Put all ingredients into the slow cooker and mix well. Cook on high for 4-6 hours, or on low for 8-10 hours. Serve with hot bread of your choice. Oh, so good!