This week on The Children’s Hour, where does our tap water come from, and where does it end up when we flush or wash it down the drain? Our water system is circular, from the Rio Grande and back again. In the meantime, it goes through pipes to homes, and down the drains when it's dirty. How do they clean it for drinking, and then clean it again after it's gross? And what role do tardigrades play? We learn about Water Treatment with the Albuquerque Bernalillo County Water Utility Authority's education director, Erin Keck.