Drainage systems are critical for the function of any building, so when it comes to assessing or repairing them, it’s important to use the best possible method. That’s where CCTV drain surveys come in. By using high-tech cameras in identifying drain connectivity ongoing drainage issues and potential sewer system problems, CCTV drain surveys provides visual access to underground drains, allowing building contractors to assess the root cause of any drainage issue and design appropriate drainage systems that meet regulatory controls.
Additionally, because they are highly flexible and excellent at mobility, CCTV drain surveys can also support construction projects by providing visual access to obstructed pipes and other underground features.
What is a CCTV drain survey?
A CCTV drain survey is a process used to inspect the condition of drains and sewer systems. A drainage engineer will use high-tech CCTV cameras to provide visual access to these drains, identify any potential drainage issues, and recommend the appropriate course of action.
This process is often used on an emergency basis to allow drainage contractors to quickly identify fractures, clogs, poor flow rates, tree roots, collapses, and other concerns in subterranean drains, sewers, culverts, or other external drainages and fix any obstructed pipes or other drainage issues.
When and why would I require a drainage survey?
One of the main advantage of using a CCTV drain survey is that it provides excellent mobility and flexibility, allowing drain engineers to gather information safely and free from harm. Additionally, this type of survey allows for the identification of the root cause of any drainage issue, which can then be rectified quickly and effectively.
CCTV drain surveys are also advantageous because they allow for the use of sonar units, which can help to identify displaced joints or other hidden objects within drains. In addition, these surveys can also help to provide quick visual access to areas where traditional methods would otherwise be unable to reach due to their size or location.
CCTV surveys are also utilised in other situations, including pre-purchase inspections when purchasing or selling a home. The survey will provide an in-depth examination of the existing state of the property’s drainage system as well as an overview of any necessary repairs. This allows buyers to make a fully informed decision before signing any contracts.
Other advantages of using CCTV drain cameras include:
-It allows for a detailed inspection of drains without having to dig them up.
-It helps to locate blockages and leaks quickly and easily.
-It reduces repair costs by allowing for accurate diagnosis of problems.
-It reduces disruption caused by digging up drains.
What Is Involved in the Process?
The first step is to carry out a visual inspection of the outside of the property to identify any obvious problems. This will help to determine the best course of action for the survey.
Next, a specialist CCTV camera is used to inspect the inside of the drains. This allows for a detailed inspection of the condition of the pipes and any potential problems. The survey process involves the use of a small camera, which is inserted into the drain through an access point. The camera is then manoeuvred through the drain, providing quick visual access to the underground drains. The images that are captured by the camera are then transmitted back to a monitor, where they can be viewed in real-time.
Finally, a report is compiled which details the findings of the survey. This can be used to help make decisions about repair or replacement work that may be required.
CCTV drainage camera system types
There are two types of CCTV drain cameras, pushrod and remote operated crawlers. Pushrod drain cameras are the most common type. They consist of a cable attached to a wheeled camera head that is pushed through the drain by an operator. Crawler drain cameras are used in larger drains, such as sewers, and consist of a wheeled camera head that is pulled through the drain by a device called a crawler.
Robotic crawler CCTV cameras
Drainage specialists survey pipes with sizes ranging from 150mm to 2000mm using robotic crawler cameras.
The waterproof cameras have bright LED lights that allow an operator to record HD-quality video footage from a console in a dedicated CCTV survey vehicle.
These cameras are paired with a tough shell equipped with an electric motor that powers wheels that may be interchanged to adjust for varied pipe conditions.
Articulating arms, swivelling and rotating camera heads, and zoom lenses are common features of robotic crawler cameras. This enables objects within pipes to be examined and recorded from a variety of angles and distances.
Push CCTV drainage cameras
Drainage engineers can utilise push CCTV cameras, also known as push rod cameras, for pipes with smaller diameters when bends prevent robotic crawler cameras from being deployed, or for vertical pipes such as soil stacks.
The mini cameras and LED lights are attached to the end of a flexible rod that is stored on a small portable reel.
While watching the video progress on a screen positioned above the reel, a CCTV surveyor can guide the flexible rod into and along the drain or sewer.
What can CCTV drain inspections discover?
CCTV drain inspections can discover a variety of things, including:
- Leaks and Blockages
- Joint Displacement
- Tree Root Ingress (Minor and Major)
- Corrosion, Wear and Tear
- Cracked and Collapsed Drains
- Scale Buildup
- Animal Infestation
- Signs of Poor Insulation
What to Expect from a CCTV Drainage Surveyor
A CCTV survey is an important tool used by drainage engineers to diagnose drainage problems and calculate how much work needs to be done in order to fix it.
A CCTV drainage survey contractor should have the necessary skills and equipment to conduct the required survey. They must also:
Provide accreditations to demonstrate that they can do the task safely, on time, and to a high standard.
Show that they have access to the professional drainage services required to execute the CCTV survey, such as jet vac tankers.
Utilize cutting-edge software solutions to ensure that survey reports are sent on time, with the correct data, and in the most user-friendly format.
Have access to specialised data collection services, such as topographic surveys and 3D mapping, when needed.
Are there any risks associated with a CCTV drain survey?
The risks associated with a CCTV drainage surveys are minimal. The camera is small and does not require any excavation, so there is little risk of damage to the surrounding area. There may be some disruption to the flow of water while the survey is taking place, but this should be temporary and will not cause any lasting damage.
How much does a CCTV drainage survey cost?
The cost of a CCTV drainage survey can vary depending on the company you use, the size of your property, and the complexity of the drainage system. However, as a general guide, a CCTV drainage survey should cost between £100 and £200.
How long does a CCTV drain survey take?
This depends on the size and complexity of the drainage system being surveyed. A typical drain survey can take anywhere from a few minutes to a couple of hours to complete.
Looking to get a CCTV drainage survey expert?
If you need a reliable drain survey company in Brighton, Regency Drainage is here to help. We offer a comprehensive range of drainservices that cover all aspects of CCTV surveying, as well as drain unblocking and repair. Whether your drains are blocked or just need a check-up, we can provide the service you need at a price that suits your budget.
