One of the key things to look here is that the direct tap water coming to schools is not healthy to drink and needs proper treatment by which water can be purified. Tap water is rigorously tested and subject to state standard. It could be tested more than bottled water but there are number of communities where tap water could be unsafe. In such communities, most schools and residential areas likely know that the water supply is unsafe and take remedial steps such as purchasing bottled water or filters.
Getting bottled water in school for kids is not a viable option all times. Also it is costlier compared to getting a purifiers. There are various options available to purify water. One of the key ways to do it is by getting a good quality purifier. You can look for viable options online and get healthier alternatives at easy and convenient way.