Prepare vegetables: Slice zucchini into thin slices.Slice onion into strips lengthwise (not rings) cut in half lengthwise then into long stripsSeed and dice the bell pepper.
Combine vegetables in a large bowl. Sprinkle salt over the top and stir in.
Add 1-2 cups ice cubes to the top of the vegetables. Let stand 1 ½ hours.
Drain and rinse the vegetables a few times.
In a large saucepan, combine remaining ingredients. Bring to a boil.
Add vegetables, return to a boil. Reduce heat and simmer for 10 minutes.
Remove vegetables with a slotted spoon and pack into sterilized jars leaving ¼ inch headspace. Ladle hot liquid over the vegetables. Remove air bubbles.
Adjust 2 piece cap and process 10 minutes in a boiling water canner.