Little kids do not understand the value of a dollar. They do not care that leaving the sink running costs their school more than may be budgeted for water use. The use of portable sinks in the classroom is a great way to regulate the water use of pre-school kids. By placing these portable sinks at the end of the kids work stations the teacher can regulate the amount of water used in the cleanup process, rather than the children using as much water as they want.

Obviously this would not be the best way for children to clean their hands after using the bathroom, or before lunch. For those types of cleaning each child should use soap and clean water, not reused water in the portable sink; however, for simple activity clean up, the portable sink is a great solution. The ability to control water usage makes portable sinks very desirable. Having a finite amount of water to be used by several children in the cleanup process is the best way to control water usage and therefore reduce the bills that the school pays to the water company.