Tony Furst, Sr. Systems Engineer-Commercial Training at Taco, reveals proper domestic water booster pump system design, focusing on accurate booster stations sizing and the critical parameters influencing long-term performance. Learn how building type, usage patterns, peak demand (GPM), fixture units, suction pressure, and potable water system boost requirements shape pump selection and operation. Additionally, discover the risks of oversizing, such as increased minimum stable flow and biofilm growth, and learn about helpful tools, such as the Modified Hunter’s Curve and IAPMO’s Water Demand Calculator, in refining demand estimates. Attendees will also gain practical knowledge about pump staging, voltage verification, upstream valve conditions, pressure sensor placement, and hydropneumatic tank sizing for energy efficiency and proper cycling. Audience members will leave with both foundational principles and field-driven insights to optimize booster pump system performance across a wide range of building applications.