Water Supply & Distribution Sizing Calculators

Code-based sizing of water service and distribution piping from fixture demand, static pressure and pressure losses. Follows the IPC/UPC water supply fixture unit method and the classic Hunter demand curve.

3 calculators in this category

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Water Supply Fixture Unit (WSFU) Calculator
Total the water supply fixture units for your fixture schedule and convert WSFU to probable peak demand in GPM using the Hunter curve from IPC Appendix E.
Water Service & Distribution Pipe Size Calculator
Size a water service line from peak demand, street pressure, elevation and developed length. Get allowable friction loss per 100 ft and the pipe size.
PSI to Feet of Head Converter
Convert psi to feet of head and back for water or any fluid by specific gravity. One psi of water is 2.309 ft; one foot of water is 0.433 psi at 60 °F.

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