Shafts are permanently susceptible to corrosion. Aggressive media not only destroy the sewage channel area, but also attack rising shaft components such as rings and cones.
PREDL works with different remediation methods depending on the local conditions:
With SCAN-lining, PREDL offers on-site laser-based surveying as a service. The most modern laser technology enables precise recording of shaft data.
Manhole-in-manhole rehabilitation system with GRP rehabilitation base-liner + GRP pipe.
Rehabilitation with PP CORPROTECT –lining (through the conus / coverslab access hole)
PREDL FLEXLINER SYSTEM
Rehabilitation with FLEXLINER base-liner + CORPROTECT-lining
The most modern technique for an exact recording of the manhole data
Laser scanning – recording of a manhole that needs to be rehabilitated
MODELLING OF THE OLD MANHOLE
The processing of the scanned data allows an accurate manufacturing of the rehabilitation elements