Our experience shows that at least a quarter to a third of all foul and stormwater sewers are now damaged and defective, depending on the wastewater association operator or municipality. We therefore recommend carrying out preventive inspections and checks to identify and repair any early problems & damage.
This can have serious consequences. The resulting infiltration into the structures, in turn, burdens wastewater treatment plants; exfiltration damages structures and contaminates groundwater.
Poorly functioning collection manholes increase backflow, lead to greater cleaning efforts, and consequently have a limited lifespan, becoming compromised to the point of operational failure.
(Rot, corrosion, odor nuisance) This makes a total failure even more imminent.
Based on our operations, 25 to 40% of manholes in Austria are damaged.
We offer solutions for the rehabilitation, sealing, and coating of manholes and underground structures, as well as separator systems made of concrete and masonry. A common reason for leaks is defective grouting in the manhole structure area.
Our Services for Manhole and Tank Rehabilitation
• Improvement and optimization of existing hydraulic flow designs in collection manholes
• Replacement and construction of manhole channels, bases, benches, and inverts
• Mineral and plastic-based internal coatings
• Cement mortar linings
• Integration/sealing of benches/inlets/outlets and cable entries
• Manhole fracture – crack and joint repair
• Sealing using plugging techniques & injection techniques/
Example of a trenchless manhole rehabilitation / Municipal sewerage system m (approx. 50 years in operation and 2 manhole inlets decommissioned). Trenchless, as part of an improvement and m-optimization and shaping of the channel, executed as a glazed stoneware STZm DN 150 outlet channel with a steep bench in m-channel clinker m design.
Slope to the outlet for self-cleaning
In case of damage or defects, we will provide you with a permanent and economically sensible rehabilitation solution. Call us; Rohrambulanz will be happy to advise you and always offer a clear and conclusive proposal.