Backflow Preventer
Place a backflow preventer object on the irrigation supply line and set its type and size in the Inspector.
Backflow PreventerA Backflow Preventer documents the proposed device on a water supply plan. The app records the selected type; it does not determine regulatory acceptance for an installation.
Place the object
Open the Water Add panel and expand Sources & Supply. Choose Backflow Preventer, then click its position on the plan. The tool guide also provides Name and Position entry. Press Esc to stop placement.
Edit its properties
In Backflow Preventer, choose Type → Air Gap, Vacuum Breaker, Double Check, Reduced Pressure or Custom. Enter Size using the unit-aware field. Select the device from the intended design specification.
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.