Grilling: Gazpacho

Name: Grilling: Gazpacho
Ingredients: 1 cucumber, peeled; 1 green bell pepper; 1 medium red onion, peeled and quartered; 1 red bell pepper; 1/2 to 1 cup cold water, or as needed; 1/3 cup extra virgin olive oil; 1/4 cup mixed chopped fresh herbs (including basil, oregano, tarragon, and/or flatleaf parsley); 2 1 inch thick slices of country style white bread or French bread; 2 tablespoons red wine vinegar (or to taste); 2 to 3 cloves garlic; 4 scallions; 5 vine ripened tomatoes (about 2 1/2 pounds); salt and freshly ground black pepper