Automated Nozzle Selection Tool

Jetting is a common means of cleaning sewers and the nozzle utilized determines the effectiveness. Numerous nozzle types are available dependent on the specific conditions in the line being cleaned. This paper describes the development and implementation of an automated software tool used to select which nozzle should be used for the conditions of a line segment that has been televised. Integration of two software packages was required in which the Computerized Maintenance Management System (CMMS) generates a work order for CCTV; the CCTV program is utilized for inspection and to compile pipe condition data which is returned to the CMMS program, which is later used to specify the appropriate nozzle. This tool consistently selects nozzles. Pipeline Assessment Certification Program (PACP) scoring was used for industry-wide consistency. A comprehensive Quality Control/Quality Assurance (QA/QC) program was developed to maintain scoring precision and accuracy. The tool has been implemented and utilized for field cleaning.