Cock-a-leekie Soup Recipe

Ingredients 4 pounds chicken thighs, bone in, skin removed 10 cups water 1 onion, chopped 3-4 garlic cloves, chopped 1/3 cup barley 1 (10.5 ounce) can condensed chicken broth 7 leeks, sliced 2 stalks celery, thickly sliced 2 carrots, sliced 1 sprig fresh thyme, chopped 1 tablespoon chopped fresh parsley 1 teaspoon salt 1/2 teaspoon