How to Calculate Sewer Line Invert Level| invert level of drainage pipe| invert level

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If sewer lines of different diameters are found in a manhole, in such a situation all the sewer lines have the same crown level but the invert level is different from each other i.e. top and bottom. It is called a drop man hole. Drop main hole is provided wherever either the diameter of the lines in the main hole is different or there is a significant difference in the level of the main line and the branch line. #invertlevel #sewer #sewerline #sewerage #Excavation #rccpipe #areacalculation #autolevel #civilengineer #civilengineering #latitudeandlongitude #survey #surveying #architecture #architect #construction #design #designer #interiordesigner #interior #interiordecor #building #buildings #builder #architect #architecture #interior #interiordesigner #homedecor #homeworkout #art #surveying #engineering #engineer #survey #surveyofpakistan #drawings #drawing #map #roadconstruction #sewerage #autolevel #totalstationsurveytraining #areacalculation #autocad #autocadplan #construction #newconstruction #underconstruction #bodyunderconstruction #constructionlife #constructionsite #constructionworker #reconstruction #civilconstruction #constructionmanagement #constructions #deconstruction #constructionequipment #preconstruction #landscapeconstruction #womeninconstruction #constructionmaison #newhomeconstruction #newconstructionhomes #commercialconstruction #residentialconstruction #homeconstruction #aclreconstruction #teamconstruction #suivremaconstruction #concreteconstruction #constructionzone #maisonenconstruction #constructionwork #constructioncompany #breastreconstruction #constructionmachinery #bodyconstruction #roadconstruction #corpsenconstruction #constructionworkers #newbodyunderconstruction #bodyenconstruction #steelconstruction #postconstructioncleaning