California approves Water Demand Calculator as alternate standard for sizing water supply piping March 8, 2024 The alternative approach will be available for statewide use on a voluntary basis starting July 1.Read More
IAPMO’s Water Demand Calculator version 2.2 available for download June 23, 2023 While the basic template of version 2.1 of the calculator remains intact, version 2.2 includes several new features. Read More
Study finds IAPMO’s Water Demand Calculator can lead to significant cost savings February 10, 2021 The primary cost savings are associated with reduced diameter water service entrances, interior cold water mains/branches, interior hot water mains/branches, fittings, labor, and appurtenances. Read More