Drain Pipe
Draw drain pipes from the Water tab, set the diameter, and configure burial and slope to carry water between inlets, basins, and outlets.
Drawing Drain PipesDrain Pipe draws a multi-point drainage route. Set its diameter, placement and optional depth change, then inspect the calculated fall. The line documents a proposed run; it is not a capacity or approval calculation.
Draw a run
Open Water → Conveyance & Discharge → Drain Pipe. Click a start and successive route points. Double-click or press Enter to finish a valid run of at least two points.
Set the pipe properties
Select it and expand Path properties. Diameter offers 75, 90, 110, 160 or 200 mm sizes, with unit-aware labels in imperial projects. Set Zone when an identifier is useful. The Pipe section reports length and point count, and may warn about a bend that needs a fitting or route adjustment.
Set placement and fall
Use Burial and, when applicable, Depth. Turn on Enable slope to enter Start Depth and End Depth. Read the resulting Slope and any Reverse fall warning; terrain levels affect the result as well as entered depth.
Review the proposed route
Inspect the connections shown on the plan and the modeled path in 3D. Drawing endpoints near fittings does not prove hydraulic connectivity, adequate capacity or construction suitability. Use Undo to revise recorded edits.