Twinwall Pipe

Twinwall drainage pipe you can rely upon

Add value and maximise profits with our twinwall drainage pipe. This cost-effective solution eradicates and prevents wet spots, water-logged pitches and black grass. We provide a wide range of perforated and unperforated twinwall pipe from the UK’s leading brands.

Whether you’re looking to prevent pitches from becoming waterlogged or improve crop yields, we will have the right twinwall drainage pipe for you. Easy to transport and install, our pipes are manufactured in High-Density Polyethylene (HDPE) with a corrugated outer wall for additional strength.

What is a twinwall pipe?

Twinwall pipe is pretty much what it says on the tin – two plastic HDPE pipes that are welded together inside one another. The outer wall is corrugated whilst the inner wall is smooth to allow water to easily flow through.

What is perforated twinwall pipe?

A perforated twinwall pipe (also known as a filter drain) has a series of holes cut inside the corrugations of the pipe. These holes collect and carry water from a waterlogged or saturated area to a designated place, such as a storm drain or a natural watercourse like a stream. The pipe can be supplied as fully perforated or half-perforated, depending on your specific requirements.

What is an unperforated twinwall pipe?

In contrast to the perforated twinwall pipe, the unperforated pipe is completely solid and does not have any holes along its bore. Also referred to as carrier pipe, it is used to carry (and not collect) water to a discharge point, such as a storm drain or natural watercourse.

What are the benefits of a twinwall pipe?

• Increase crop yields
  Depending on the condition of the land, well-drained land can improve crop yields by as much as 150%.

• Improve soil quality for crops
  Having well-drained soils is vital to the health of your crops. Benefits include good soil structure for root development and oxygen for organic material, an extension to the growing or grazing season etc.

• Prevent black grass
  In order to tackle this tricky problem, it is important to improve and maintain good soil structure by ensuring your land is well drained.

• Prevent waterlogged sports pitches
  Prevent lost revenues through waterlogged pitches by ensuring they can be used all year round.

• Smooth bore
  Provides superb hydraulic flow and a corrugated outer wall for added strength.

What is the difference between a twinwall pipe and a land drainage pipe?

Twinwall pipes and land drainage pipes have very similar uses, which can make it confusing to decide which one suits your application best.

However, they offer a few distinct differences:

• Land drainage coil – mainly used to drain small gardens and large fields. These pipes are flexible and easy to transport and handle.

• Twinwall pipe – generally used for bigger projects. These pipes are rigid and inflexible and the bigger the diameter, the heavier the pipe tends to be.

Using the right product for your application is important – if you’re in any doubt please get in touch, we’re always happy to help.

How to install a twinwall pipe?

To install a twinwall pipe, you will first need to dig out a trench, and then lay the pipe on the trench bed. Once in place, backfill and side-fill the trench with gravel. Then smooth over and finish the ground with topsoil.

What sizes are available in twinwall pipe?

Our twinwall pipes come in 6-metre lengths and range from 100mm to 3500mm in diameter. Your required size will depend on what sector and where you wish to install the twinwall.

Our pipes can be perforated or unperforated depending on your requirement, and we supply a full range of junctions, bends and adaptors.

Why choose a twinwall pipe from Cotterill Civils?

High strength & durability

Manufactured from high-performance HDPE and with a corrugated outer wall for additional strength, the pipe is less vulnerable to cracking and is ideal for cold weather conditions.

Lightweight & easy to handle

Its lightweight material makes it easier to transport, handle and install than concrete or clayware.

Minimal joining

Minimal joining compared to concrete or clayware.

Increase yield potential

Make every acre count and buy back your unprofitable ground. Our land drain coil optimises your soil structure and yield, in turn maximising profits.

Increase land value

With land prices soaring, getting the optimum productivity and yield from every acre has never been more important. Efficiently drained land puts the landowner in a more favourable position with regard to selling or letting the land.

Improves playing surfaces

Efficient drainage of playing surfaces allows for enhanced performance, fewer games to be called off due to water-logged pitches, the minimisation of injury and, importantly, increased overall enjoyment.

Top tips for land drainage

We understand the importance of land drainage and the difference it can make.

That’s why we regularly share research, tips and news items related to land drainage. Here are just some of our articles: