Property connection elements are used to load sewer models based on data at the level of individual properties. This is useful when a user has loading data provided for customers/properties based on metering, number of occupants/fixture units, or simply flow per property.

Property connections can be connected to a downstream gravity network using lateral links. Laterals connect to tap elements and most gravity nodes such manholes, transitions, and catch basins. Property connections cannot be connected to pressure elements. Laterals can only make a single connection to a tap or other hydraulic element.

Property connections are used for loading in the Explicit and GVF Convex solvers, but not the Implicit solver. Property connections support hydrograph inflows, pattern loads, or directly accept runoff as the outlet of a catchment. For the GVF Rational Solver, flow through a Property Connection must come from a Catchment. (Property Connection designated as the Outflow Element.)

A Property Connection can be placed manually in a model by selecting Layout, then either Property Connection or Lateral. There cannot be any hydraulic elements on the upstream side of a Property Connection. (However, a Property Connection can be the Outflow Element for a catchment.)

Elevation of the ground and the lateral invert can be placed in the attributes of the Property Connection element but are not used in the hydraulic calculations. It is not possible to construct a profile through a lateral link and up to a Property Connection.