The purpose here is to discharge the water inside the pipe line which has been tested and make the pipe line ready for the drying
process. The discharge process is performed pushing the pigs used in the direction of filling backwards or using pigs which are not
used during filling before. In the process of discharge, it is necessary to be careful and to take the necessary measures since pressurized
air is used behind discharge pigs. The point from which the discharge water shall be discharged and the environmental affects should
be analyzed, before commencing the process of discharge and additional measures should be taken if necessary.