When choosing which type of concrete manhole ring is best for your project, it’s important to understand the difference between standard and watertight options. Below, we explore their uses, advantages, and which option is most suitable for your application.
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What Are Manhole Rings Used For?
Manhole rings are used to provide safe, durable access to underground sewer and drainage systems. They come in a range of sizes and materials, depending on the project requirements. Typically, precast concrete rings are used for installations deeper than 1 metre, offering excellent structural strength and long-term reliability.
Advantages of Concrete Manhole Rings
Concrete manhole rings are known for their exceptional strength and durability, making them ideal for long-term underground installations. While plastic manholes are lightweight and easier to handle, concrete offers far superior resistance to ground pressure and heavy loads — making it the preferred choice for commercial, civil, and infrastructure applications.
The connection points between pipe sections are one of the main advantages of concrete systems. With precise joints and high load-bearing capacity, they ensure stability and prevent displacement under pressure. Unlike plastic systems, concrete manholes require no special anchoring for security.
Why Choose a Watertight Concrete Manhole Ring?
A watertight concrete manhole ring provides a completely sealed chamber — eliminating the need for a concrete surround during installation. This makes it a more cost-effective and time-efficient solution, reducing both labour and material requirements.
These systems use precision-engineered rubber seals and spigot-and-socket joints to prevent leaks, making them ideal for areas with high groundwater or strict environmental compliance needs.
Our Concrete Manhole Rings
At Cotterill Civils, we supply a wide range of concrete manhole rings in multiple sizes and configurations to suit your project requirements. Our watertight manhole rings are designed to suit our BSI Kitemarked Perfect Base System and meet BS EN 1917 standards.
Using a rubber seal with spigot and socket joints, our wide-wall manhole rings achieve full water tightness without needing a concrete surround. Each ring is manufactured with spherical lifting eyes cast in for safe, simple handling on site.
Advantages of Our Watertight Concrete Manhole Rings:
- No concrete surround required
- Fast and safe installation
- More cost-effective than traditional methods
- Complete watertight chamber
- Integrated lifting anchors for easy handling
- Environmentally friendly solution
- 0.5 bar pressure-tested joint
- Seal exceeds EN 1917 load transfer requirements
Talk to the Experts
Our team of drainage specialists can help you select the right manhole ring for your project. Call us today on 0121 351 3230 for expert advice.
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