The United Nations predicts that city populations will continue to increase significantly over the next 50 years. As a result, more people will be packed within city boundaries, putting increasing strain on urban infrastructure.
Luckily, today’s city planners are already working to mitigate potential problems and make cities more resilient—both above and below ground. The sewer systems running underneath our busy streets are a core part of this preparation. Planners’ top priority for sewer systems is ensuring they can cope with increased volumes of foul water—but there are other make-or-break factors to consider, including durability.
Using sewer systems that are designed to last will minimize the amount, frequency and duration of sewer maintenance or replacement work. Crucially, this will keep roadworks, which worsen congestion and snarl up the streets, to a minimum. And, ideally, planners want contractors to use manholes, inspection chambers, pipes and connectors with extended lifespans and designs that emphasize leak prevention.
The new Wavin Tegra 600 LC is the ideal inspection chamber for this scenario. It has an outstanding 100-year lifetime and innovative features that enhance flexibility and prevent leaks, dramatically reducing road disruption caused by sewer installation or maintenance.
An advanced flex adapter for outstanding leak prevention
One of the standout features of Wavin Tegra 600 LC is its unique, patented flex adapter that delivers a 30% increase in flexibility compared to previous versions. Its flexible ball joint means it can adapt to any change of direction or slope and is designed to flex to overcome obstacles. This innovation means the system can adapt to greater levels of soil settlement and other ground movements, preventing stress on connections during and after installation.
Its added flexibility is particularly valuable in urban areas, where space constraints and unpredictable ground conditions can be challenging. For example, the ground can often shift in older cities, where mixed infrastructure due to historical subsidence or heavy traffic loads creates greater variability. However, Wavin Tegra 600 LC can absorb these stresses to keep the system leak-free and operational over its 100-year lifespan.
This innovative flex adapter also simplifies installation. Thanks to its integrated design, there’s no need to add separate adapters to make it function in different environments. This makes fitting more straightforward, faster and less likely to cause structural damage.

A high-performance socket and seal combination
Wavin Tegra 600 LC has a redesigned, sculpted socket that reduces push-in force by 20%, making installation faster and less physically demanding. For contractors working in harsh weather conditions or tight urban spaces, this makes a massive difference to how easily and safely they can fit a sewer system.
The symmetrical seal delivers right-first-time installation by eliminating the risk of upside-down fitting, a common issue that can lead to leaks and costly repairs. Repairing a sealing error can cost up to €1,500 per chamber, so Wavin Tegra 600 LC’s symmetrical, easy-fit seal gives contractors valuable peace of mind. Again, this innovation accelerates fitting and minimizes the likelihood of unplanned maintenance.

Wavin Tegra 600 LC in action
Imagine a thriving city with rapidly increasing levels of congestion. In a worst-case scenario, this city could be experiencing double-digit growth in traffic delays. In Istanbul, for example, traffic delays surged by 15% in 2024, with drivers losing 105 hours during that year due to congestion.
The city’s leaders are doing everything they can to prevent their area from getting a bad reputation for traffic delays, but they don’t have the space to widen existing routes or build more roads. So, they’re thinking laterally and taking every opportunity to make below-ground infrastructure robust and durable to minimize road closures to give access to these systems.
Now, when awarding construction tenders involving sewer systems, the city planners thoroughly assess all aspects of an inspection chamber’s durability—its lifespan, how well it withstands ground movement, how resistant it is to incorrect fitting and its likely frequency of maintenance. After a comprehensive survey of what’s available on the market, the city favors tenders that specify Wavin Tegra 600 LC.
Win business with a durable sewer system
We’ve developed Wavin Tegra 600 LC to operate without leaks for 100 years, so developers, contractors and urban planners can confidently ‘forget’ the sewer systems beneath their feet.
Find out more about why Wavin Tegra 600 LC is a smart choice here.