Water quality is a major issue for all species – animals and plants can go for several days without food, but cannot last long without access to water. This makes water the number one nutrient in all diets – although it is frequently neglected and taken for granted. As such the quality and safety of water is essential in maintaining animal health. Lucy Waldron of LWT Animal Nutrition Ltd discusses why using an effective disinfectant and water sanitiser on farm or with various animal enterprises is important in maintaining animal health, productivity and welfare.