💧 Water Supply Design Water Supply Design Tool – A professional MEP calculator for converting WSFU to Flow Rate, estimating pipe diameters, and friction losses with Darcy–Weisbach, featuring PDF reports and full material database. Version : 1.0.3 Download Reference Sizing of water piping system, IPC 2021 Darcy-Weisbach Formula, Plumbing Engineering & Design Handbook of Tables, ASPE