IAPMO Seeks Water Demand Calculator Consensus Body Members

The International Association of Plumbing and Mechanical Officials is seeking volunteers with a technical background in plumbing system design to participate on the Water Demand Calculator consensus body for the development of IAPMO Z1403.

IAPMO initiated a project to develop the Water Demand Calculator to provide a new water supply sizing method that takes modern water usage patterns into account. It represents the first statistically based sizing method since the 1940s and is a product of a multi-year research project between IAPMO, the American Society of Plumbing Engineers, the Water Quality Research Foundation and the University of Cincinnati. This effort led to the introduction of the Water Demand Calculator to the 2018 Uniform Plumbing Code in accordance with the ANSI-accredited development process.

The development of this binational standard will provide jurisdictions and provinces with a standard accredited by both the American National Standards Institute and the Standards Council of Canada.

The first consensus body meetings will be held virtually. The deadline to apply is Sept. 27. Applications can be downloaded at forms.iapmo.org/iapmo/committee/app_ps_committee.aspx

Industry stakeholders — including installers, manufacturers, plumbing professionals, building owners and managers, engineers AHJs, and the general public — are invited and encouraged to apply to participate.