From both a public health and cost-savings perspective, water conservation is of the utmost importance. It’s important, though, that the flow of water provides adequate hand and body cleaning as well as sufficient waste removal. Pipe sizing needs to be adequate to the long-term system performance without being excessively overbuilt to avoid this unintended consequence.
Water usage is best standardized by putting in place strong codes that take on the power of law. Comprehensive and easy-to-enforce uniform plumbing codes ensure that homes and buildings embody the most efficient and safest plumbing systems.