Spinach lettuce detox smoothie

Ingredients
7 cups chopped spinach (~a medium bunch)
6 cups chopped romaine lettuce (~1 small head)
2 cups cold filtered water
1½ cups chopped celery (~2 medium stalks)
1 medium apple, cored and coarsely chopped
1 medium pear, cored and coarsely chopped
1 medium banana, peeled and cut in thirds
2 tablespoons freshly squeezed lemon juice

Optional Ingredients
1⁄2 cup minced fresh cilantro (stems are okay)
1⁄2 cup minced fresh parsley (stems are okay)

Directions
1. Using a high-speed blender, toss all the ingredients in and blend until smooth. Adjust consistency as desired. If you want something thicker, add more solids. If you want something more liquid, add more liquids.