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How Does a CCTV Drain Survey Work?

A CCTV drain survey uses a remotely controlled, high-resolution camera attached to a flexible cable to inspect the interior of your drainage system, identifying any blockages, damage, or structural issues.

Drainage problems can be frustrating and disruptive, but diagnosing the issue is often difficult without the right tools. This is where a CCTV drain survey comes in, offering an efficient and non-invasive method for examining the condition of your drains.

This article’ll explore how a CCTV drain survey works, the equipment used, the benefits, and when it might be necessary.

The Equipment Used in a CCTV Drain Survey

A CCTV drain survey utilises a range of equipment to investigate your drainage system effectively. This includes:

Drain Inspection Camera

A high-resolution, waterproof camera is mounted on a flexible cable, allowing it to navigate the twists and turns of your drainage system. The camera is equipped with bright LED lights to illuminate the interior of the pipes, ensuring clear, detailed images.

Camera Crawler

A camera crawler may be used for larger pipes or longer drainage stretches. This remotely controlled, motorised device carries the inspection camera through the pipe, allowing for a more extensive investigation.

Monitor and Recording Equipment

The images captured by the camera are transmitted to a monitor in real-time, where the drainage engineer can assess the condition of your pipes. The footage is also recorded for further analysis and to create a comprehensive report of the survey findings.





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    How the CCTV Drain Survey Process Works

    A CCTV drain survey typically involves the following steps:

    1. Accessing the Drainage System: The drainage engineer will locate a suitable access point, such as a manhole cover or inspection chamber, to insert the camera into the drain.
    2. Inserting the Camera: The camera is carefully guided into the pipe, either manually or using a camera crawler, depending on the size of the drain and the extent of the survey.
    3. Inspecting the Drains: As the camera progresses through the pipe, the engineer monitors the live footage on a screen, looking for signs of blockages, damage, or other issues that may be affecting your drainage system.
    4. Recording the Findings: The camera footage is recorded, allowing the engineer to review the images and create a detailed report of the survey results, complete with recommendations for addressing any identified problems.
    5. Removing the Equipment: Once the survey is complete, the camera and any other equipment are carefully removed from the drain, and the access point is securely closed.

    The Benefits of a CCTV Drain Survey

    There are numerous advantages to conducting a CCTV drain survey, including:

    • Accurate Diagnosis: A CCTV drain survey provides a clear visual representation of your drainage system, allowing for accurate identification of any issues.
    • Minimal Disruption: As a non-invasive method, a CCTV drain survey causes minimal disruption to your property, avoiding the need for excavation or extensive groundwork.
    • Cost-Effective: By pinpointing the exact location and nature of any problems, a CCTV drain survey can save you money on unnecessary repairs or maintenance work.
    • Preventative Maintenance: Regular CCTV drain surveys can help identify potential issues before they escalate, allowing for preventative maintenance and reducing the risk of costly emergencies.

    When is a CCTV Drain Survey Necessary?

    A CCTV drain survey may be required in a variety of situations, such as:

    • Persistent Drainage Problems: If you’re experiencing ongoing issues with your drains, such as slow draining water or unpleasant odours, a CCTV drain survey can help identify the cause.
    • Property Purchase: Before buying a new home, a CCTV drain survey can provide peace of mind by ensuring the property’s drainage system is in good condition, avoiding any unexpected repair costs after purchase.
    • Building or Renovation Work: If you’re planning significant building or renovation work on your property, a CCTV drain survey can help identify any existing drainage issues that may impact the project, allowing you to address them beforehand.
    • Drain Mapping: For larger properties or those with complex drainage systems, a CCTV drain survey can be used to create a detailed map of the drains, aiding in future maintenance and repair work.

    Preparing for a CCTV Drain Survey

    To ensure the most accurate and efficient results from your CCTV drain survey, it’s essential to prepare your property beforehand:

    • Clear Access Points: Make sure any manhole covers or inspection chambers are accessible and free from obstructions.
    • Check for Water Flow: Ensure there is minimal water flow through the drains during the survey, as this can impact the visibility of the camera.
    • Inform Neighbours: If you share any drainage systems with neighbours, let them know about the planned survey and ask for their cooperation in reducing water usage during the process.

    Final Thoughts

    A CCTV drain survey is a highly effective method for diagnosing and addressing drainage issues within your property.

    By using state-of-the-art equipment and a non-invasive approach, this process minimises disruption while providing accurate, detailed information on the condition of your drains.

    Whether you’re dealing with persistent drainage problems, considering a property purchase, or planning a significant building project, a CCTV drain survey can provide invaluable insights and peace of mind.

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