Configure advanced calculation options

Advanced options control how the solver runs and reports results. Flow Types, Calculation Method, and Pipe Table settings can also be set in User interface basics Project Properties (Quick Access) from the header.

Calculation method

Calculation Method: Use Hazen-Williams for standard water-based sprinkler workflows. Use Darcy when project standards or fluid conditions require it.

Automatic peaking

Automatic Peaking: Shifts the remote area position along branch lines to locate the most demanding location before final results.

Calculation imbalance limit

Calculation Imbalance Limit: Controls solver precision. Lower values increase precision but may increase solve time.

Use velocity pressure

Use Velocity Pressure: Includes velocity pressure effects when that reporting method is required.

Enforce check valves

Enforce Check Valves: Forces check-valve flow direction rules during solving and should only be used when applicable to the system.

Minimum allowable source pressure

Minimum Allowable Source Pressure: Sets the lowest source pressure allowed while solving for end-head requirements.

Use legacy pump curve model

Use Legacy Pump Curve Model: Uses Classic (desktop) default pump-curve behavior for non-custom pumps when legacy matching is required. See Pump curve model: legacy vs current for details and examples.