Place the orzo in a decent sized pan, then add the turmeric. Cover with plenty of boiling, salted water, stir and bring to the boil. Turn the heat down and simmer until cooked.
Cook the orzo, according to the pack instructions usually around 8 to 10 minutes.
Meanwhile make the dressing by mixing the red wine vinegar, oregano, lemon juice, pickled veg juice, water and seasoning together well. Set aside.
Finely chop the onion, peppers, parsley and cut the tomatoes in half.
Remove the orzo from the heat, then plunge it into cold water to cool it down and stop it from overcooking and clumping together. Drain it well.
Tip all of the ingredients into a large bowl, check the seasoning and add some more salt and pepper if necessary. Mix well and serve sprinkled with some more chopped fresh parsley.