Manholes are used in sewage systems for gravity discharge of waste waters from residential houses, for rain waters and waste waters from industrial plants.


[download] 0.3 MB Water-meter shafts
[download] 0.3 MB Standard manhole
[download] 0.3 MB Armature shafts
[download] 0.3 MB House connection manhole
[download] 0.3 MB Mixed system manhole
[download] 0.3 MB Cascade manhole
[download] 0.2 MB Saddle manhole
[download] 0.3 MB Collection manhole
[download] 0.2 MB Gullies/sand trap