Polyethylene Water/Sewer - JM Eagle

4.12 Initial Service TestingAn initial service test may be acceptable when other types of tests are notpractical, where leak tightness can be demonstrated by normal service, orwhen initial service tests of other equipment are performed. An initial servicetest may apply to systems where isolation or temporary closures are impractical,or where checking out pumps and other equipment affords the opportunityto examine the system for leakage prior to full-scale operations.4.13 Test ProcedureThe piping system should be gradually brought up to normal operatingpressure, and held at operating pressure for at least 10 minutes. Duringthis time, joints and connections should be examined for visual evidenceof leakage.4.14 Non-Testable SystemsSome systems may not be suitable for pressure testing. These systems maycontain non-isolatable components, or temporary closures may not be practical.Such systems should be carefully inspected during and after installation.Inspections such as visual examination of joint appearance, mechanicalchecks of bolt or joint tightness, and other relevant examinations shouldbe performed.5.0 REPAIRS TO DAMAGED PIPERepair situations may arise if a polyethylene pipe has been damaged. Damagemay occur during shipping and handling, during installation, or afterinstallation. Damage may include scrapes or abrasions, breaks, punctures,kinks, or emergency squeeze-off. Permanent repair usually involves removingand replacing the damaged pipe or fitting. In some cases, temporaryrepairs may restore sufficient serviceability and allow time to schedule permanentrepairs in the near future. IN ANY EVENT, ALL DAMAGED MATERIALMAY BE REPLACED OR REPAIRED BY METHODS AUTHORIZED BY THE22 HDPE WATER/SEWER PIPING SYSTEM TECHNICAL & INSTALLATION GUIDE