The document uses an analogy of a swimming pool to explain how child support works. It describes how the custodial parent pays for all child-related and personal expenses from the "pool" of their finances. Child support helps to refill the empty pool by repaying the custodial parent for expenses already paid on the child's behalf. As long as the child's basic needs are being met, such as housing, food, clothing, then the child support is not being misused and the custodial parent can use remaining funds as they see fit.