Yes, drink all the water you like, and herb teas such as peppermint, chamomile and rose hip.
DO get hold of the wonderful book by Paavo Airola, How to Keep Slim, Healthy & Young with Juice Fasting! You will learn many amazing things about juice fasting and weight loss.
DO continue to exercise as you fast! Even a 30 minute walk every day will make a big difference.
Carlos and I loved our green apple/red grape/ginger juice this morning! Time to start prepping veggies for lunch...