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The Twelve Days of Christmas With Hydro Cleansing | 4. Trenchless Tech

“On the fourth day of Christmas,
my true love sent to me,
four broken pipes,
three Septic Tanks,
two feet of tree roots,
and Hydro Cleansing’s Mega-Heat…”

no dig trenchless CIPP technology

Day four of the Christmas countdown is upon us, and so is the latest blog instalment! Today’s blog is all about our talented CCTV team and their top of the range trenchless technology. Drain repair equipment has come a long way in the past few years. Discovering you have a cracked or damaged  pipe no longer means digging up your garden and weeks of work. Advances in technology mean that repairs can begin almost immediately with no digging or disruption. Read on for a journey of drain lining discovery!

How does it work?

When you request a drain relining service the first step is to identify the cause of damage. We will send a CCTV unit into the pipe to assess the damage and check if a drain pipe relining is feasible. When we have completed this stage and agreed a drain relining is the best option, our team will start work!

What does it involve?

We will use one of our state of the art jet vac tankers to clean and remove any blockages within the drain or sewer pipe. This is to ensure the pipe has a good clean surface for the resin to bond to. We then insert a deflated packer (also known as a bladder) within the drain, pushing it through to the damaged area.  Once we have confirmed we are covering the damaged part of the drain with the drain relining patch, the packer (bladder) will then be inflated.

This will force the drain relining to bond with and secure itself to the inside of the drain or sewer pipe. Once dried, this makes a completely secure, leak-proof seal. Once we have removed the packer our team will then re-insert the CCTV unit into the newly repaired pipe to make sure that the resin has cured and there are no leaks. Drain relining can patch drain pipes from as little as 100mm diameter up to 1.5 metres and is a permanent solution.

Job Done!

Landmark CCTV Survey

Over two nights were commissioned (working to exceptionally tight timescale) to work on Tower Bridge by a major blue chip construction company, to carry out CCTV inspections using Solo Pro and a mini cam to identify the:

  • Drainage layout relating to invert levels
  • Branch lengths
  • Pipe diameters.

To assist our CCTV unit, one of HCL’s Fleet of Combination units was deployed and when required cleared the gullies of debris and obstructions to allow for clear run of all the lines. Man and machine working in harmony.

Hydro Cleansing have now successfully produced the associated CAD Drawings relating to the drainage system of one of London’s most iconic landmarks.

The pictures taken by our in house team show yet again the capabilities of HCL’s team, both relating to manpower and equipment.

Yet again HCL deliver on time and within budget.

CCTV Survey van

Our vans are fully equipped with the latest technology.

Combination vacuum tanker

By having a Combination tanker on site we could insure the line would be clear to survey.

Vehicles working on tower bridge

Combination & CCTV unit working together.

CCTV camera survey

CCTV Survey used to produce CAD drawings


The benefits of CCTV drain surveys:


The benefits of CCTV drain survey



Some people avoid talking about drains or drainage and sometimes keep a distance when it is been surveyed or unblocked. The importance of drains comes to true light when there is a sudden blockage or breakdown. Having a complete understanding of the dangers of a blocked drain suddenly affirms and confirms the benefits of a CCTV drain survey. Before delving into CCTV survey and its benefits, it is imperative to look at the dangers of blocked drains as this will help us to properly understand the benefits of CCTV drain survey.


Dangers of a blocked drain

A blocked drain is conceived to be a real problem or menace for home owners. A blocked drain is viewed as a product of a structural problem or could be as a result of issues like water resurgence. The negative effects of a blocked drain to a homeowner or business is enormous.

The first negative impact that emanates from a blocked drain is that of contaminated water, which serves as a breeding ground for bacteria’s. Bacteria’s in the form of Legionella tend to thrive in a contaminated water triggered by a blocked drain.

The second negative impact of a blocked drain is that it gives rise to offensive and bad odour.  When someone is exposed to a bad odour, there seems to be a higher degree of stress, anxiety, constant fatigue, headache and bad mood.

With an insight into the dangers of a blocked drain, it is now imperative to look into the meaning and benefits of CCTV drain surveys.


Why CCTV drain survey?

CCTV is an acronym that stands for closed-circuit television. A plumber or drainage specialist adopting this approach in addressing a blocked drain, will install a camera down in the piping network. The images captured by the camera are then relayed on a big television device, which helps the drainage specialist to continually monitor the blockage. This process is a more efficient, in-depth and a clearer analysis of the drainage.

This approach is also very beneficial for someone that has just moved into a new property and who desires to carry out a full examination of the state of the drainage pipes. Above all, it is important to reiterate that CCTV survey and drain unblocking is a stress-free plumbing operation and an affordable alternative to traditional approaches.


Here at Hydro-cleansing, within our CCTV drain and CCTV survey divisions, we always ensure that our fully trained CCTV drain survey experts and extensive CCTV fleet provide clear, in-depth and excellent analysis of your drainage. Whilst we take the worry off you, our goal is to find, identify and address the causes of any blockage, bad smell, obstruction and damage infrastructure. In the event that you are struggling or maybe experiencing symptoms of a blocked drain, please get in touch with us as soon as possible, for our expert intervention.