Informative but only hits the surface of the technology or techniques available for that purpose. Besides the soft ball pgs ther ar ea variety of solidpigs and intelligent pigs to notnonly clean the interior surface but to inspect an guage the wall thickness and there are a varieyt of wash mixes, solvents and such to isnertbetween pigs to get a thorough and efective cleaning process..

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Informative but only hits the surface of the technology or techniques available for that purpose. Besides the soft ball pgs ther ar ea variety of solidpigs and intelligent pigs to notnonly clean the interior surface but to inspect an guage the wall thickness and there are a varieyt of wash mixes, solvents and such to isnertbetween pigs to get a thorough and efective cleaning process..