How much water should babies be drinking when they start solids?

Once baby starts solids, you might want to give him a few sips of expressed milk or water with his solids – some babies need this to prevent constipation. For toddlers, continue to breastfeed and offer water in moderation. Breastmilk supplies plenty of fluids, so many older babies or toddlers who breastfeed without restriction can get the fluids they need through breastfeeding. If you are giving formula milk, a small cup is sufficient. For me, after baby starts solids I give a few sips of water to wash the taste in the mouth. I only offer water in sippy cup after they turn 1 year plus. http://kellymom.com/nutrition/starting-solids/baby-water/