Catch Basin
Place catch basins from the Water tab — below-grade collection points where multiple drain pipes meet before routing to an outlet.
Catch BasinA Catch Basin represents a drainage collection chamber. Place it at a planned junction or access location, then record its appearance and depth. It does not automatically route incoming pipes or prove their capacity.
Place the object
Open the Water Add panel and expand Access & Maintenance. Choose Catch Basin, then click its position on the plan. The tool guide also provides Name and Position entry. Press Esc to stop placement.
Edit its properties
Under Fixture Style, choose Concrete Square, Round Riser or Green Lid. In Basin, set Basin Depth using the numeric field or slider and enter Sump Depth when known. The basin-depth control accepts 0.15–0.8 m, displayed in project units.
Position and identify it
Use General → Name to identify the object and Location for its position. Length fields follow metric or imperial project settings. Locked objects cannot be edited until unlocked. Changes use drawing history.
Document the route
Draw the appropriate irrigation or drainage pipe route to show the intended arrangement. A nearby symbol alone is not proof of a working connection or a hydraulic calculation. The water tools document a schematic plan; they do not simulate real pressure or flow.