Subsoil Factors
Subsoil factors at the top of the window include the Site Swell Factor, Import Swell Factor and Import Compression %. The Site Swell factor is the expansion factor for Subsoil that is stripped. A Site

Subsoil factors at the top of the window include the Site Swell Factor, Import Swell Factor and Import Compression %.
The Site Swell factor is the expansion factor for Subsoil that is stripped. A Site Swell factor of 1.25 will result in 25% more yards of Subsoil when the dirt is loose or expanded. For no swell or expansion of the Subsoil, the factor should be set to 1.
The Import Swell Factor is the factor used for compression. The quantity of imported Subsoil in Loose Cubic Yards divided by the Import Swell factor yields the compressed cubic yards. For results with no compression of Subsoil when importing, the factor should be set to 1.
The Import Compression % is the inverse of the Import Swell Factor, expressed as a percent. Changing the Import Compression % changes the Import Swell Factor. The Import Swell Factor is used for calculations.
The Site Swell and Import Swell factors are often set between 1 and 1.5.
