| Rating | How the Rating is Obtained by the System | 
| Structural Number Total | The system adds up the structural defects on the pipe using the matrix in the Inspection Setup module. | 
| Flow Number Total | The system adds up the I/I (infiltration/inflow) defects on the pipe. | 
| Cleaning Number Total | The system adds up the cleaning defects (e.g. grease, debris) on the pipe. | 
Remember: These numbers are not percentages; therefore, the numbers may be over 100 or even over 1000 depending on the pipe's defects (the worse the defects are, the higher the numbers will be).