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Legionella control

Cleaning And Chlorination Of Cooling Tower

Cooling tower water treatment – FAQ’s

What do I need to do if I am responsible for a cooling tower?
The first step is to carry out a Legionella Risk Assessment, it will need to be conducted by a competent water treatment professional with expertise in cooling towers. The risk assessment will form the basis of control measures put in place to reduce the risk of legionnaires’ disease.

You will also need to register the Cooling Tower with your local authority.

(The Notification of Cooling Towers and Evaporative Condensers Regulations 1992). These Regulations require employers to inform their local authority, in writing, if they operate a cooling tower or evaporative condenser and include the location of the tower to be used in case of an outbreak of Legionnaires’ disease. It is also a requirement for employers to notify when cooling towers are no longer in use. Notification forms are available from your local environmental health department.

https://www.gov.uk/cooling-tower-notification

What are cooling towers used for?
Cooling towers provide cooling for a wide range of industrial processes and air conditioning.

Cooling tower means a device whose main purpose is to cool water by direct contact between the water it holds and a stream of air.

Evaporative condenser means a device whose main purpose is to cool a fluid by passing the fluid through a heat exchanger which is itself cooled by contact with water passing through a stream of air.

Essentially, they are both arranged so that the air moves against the direction of the water.

The process of using evaporative cooling of water is widely used to deplete heat from air conditioning, refrigeration and industrial process systems. There are a range of evaporative cooling systems that use the evaporation of water to achieve this cooling effect and these include cooling towers and evaporative condensers. Open-circuit cooling towers are the most common and range in size from small packaged towers used in air conditioning and light industrial sites, up to large towers, including hyperbolic towers for heavy industrial uses.

Water boils at 100℃ and freezes at 0℃ and these changes of state from liquid to steam require an additional input of energy known as the latent heat of vaporisation.

The energy required to change 1 gram of water into steam is the highest of any known liquid which makes it particularly good as a cooling medium. As the water evaporates it takes a large amount of energy with it which cools the remaining liquid considerably.

Why cooling tower water treatment is needed?
The water used in cooling towers needs to be treated because impurities in the water cause the following problems all of which require actions for the system to run efficiently:

  • Scale
  • Corrosion
  • Suspended solids
  • Microbiological growth

It is important to have in place an effective water treatment programme to prevent the growth of legionella in the cooling water. A cooling tower water treatment programme should be capable of controlling not only legionella and other microbial activity but also corrosion, scale formation and fouling to maintain the system’s cleanliness. Appropriate water treatment may involve a range of chemical and physical techniques to control corrosion, scaling and fouling potential of the cooling water and to control microbial growth. Any water treatment regime must be monitored regularly to ensure they remain effective. The exact techniques that are required may vary significantly with different water supplies, the design of the cooling system and local operating conditions so it is important to engage a water treatment consultant to ensure the correct selection of control measures for your site.

How do you prevent legionnaires disease in cooling towers?
The first action is to identify and assess the sources of risk and appoint an individual who is managerially responsible for the system. This person must be trained and competent and must also have the authority and budget to act when necessary. The next step is to prepare a written scheme to include temperature monitoring, chemical treatment and any remedial works required to ensure compliance with current guidance. Once a scheme has been prepared it needs to be implemented, managed and monitored. Information must be held in a logbook so records are accessible and can be used to check the scheme remains effective. The records must be regularly reviewed, and any changes made to ensure effectiveness. Records must be kept for 5 years.

It is a legal duty to control the risk of exposure to legionella bacteria. As legionella bacteria are more likely to grow and proliferate in a cooling system fouled with sludge, scale and other deposits, maintaining system cleanliness and the water in it is an essential part of the control regime. The cleaning and disinfection frequency must be determined by a risk assessment and this should be based on inspection and the history of the water treatment control of microbial activity, scaling tendencies and other factors that may result in fouling of the system. In relatively clean environments with effective control measures, it may be acceptable to extend the period between cleaning operations, provided you can demonstrate that system cleanliness is maintained.

Water quality monitoring
The composition of the make-up and cooling water must be routinely monitored to ensure the continued effectiveness of the treatment programme. The frequency and extent will depend on the operating characteristics of the system. There are some checks which must be carried out weekly for example TDS and pH, while others are much less frequent for example legionella testing which is typically carried out quarterly.

Routine checks on cooling towers:

There are various checks which must be performed daily; these include a visual check of the cooling tower, check on the internal condition, dosage equipment and chemical drum levels check.

Every week the oxidising biocide levels, conductivity (TDS), pH, microbiological activity, pumps and softener must be checked and records updated in the logbook.

Why is scale a problem is cooling towers?
Scale is one of the four main issues found in cooling towers below are 5 of the key implications of scale:

  • Scale reduces heat transfer
  • Scale promotes corrosion
  • Scale promotes microbial growth for example legionella bacteria
  • Scale absorbs chemical treatments
  • Scale can obstruct pipework causing inefficiency and increased energy costs

Scale is the localised build-up of normally water-soluble inorganic hardness salts. Its formation is influenced by the concentration of calcium salts, pH, surface and bulk water temperatures and the concentration of the total dissolved solids (TDS). As an evaporative cooling system operates, the concentration of these various dissolved solids increases and the pH of the water tends to rise, which results in the scaling potential of the water increasing.

Scale formation results in loss of heat transfer, reduced flow rates and loss of efficiency and contributes to deposition. Legionella can be associated with such deposits. The scale protects the bacteria and so reduces the effectiveness of any biocidal treatment.

One or more of the following techniques generally control scale formation:

  • removing the hardness from the make-up water by pre-treatment, e.g. water softening
  • adding specific scale inhibitors that extend the solubility of the hardness salts and so prevent precipitation
  • acid dosing to lower the pH and alkalinity and reduce the scaling potential
  • limiting the system concentration factor to a range within which the hardness salts can remain soluble

What is TDS in a cooling tower?
Conductivity or Total dissolved solids (TDS) the quantity of solids dissolved in the water, measured in mg/l. These solids will typically include calcium and magnesium (sodium in softened water), bicarbonate, chloride, sulphate and traces of other materials. TDS indicates general water quality.

What are dipslides used for in cooling towers?
Dipslides are used to measure the level of bacteria. They are incubated at 30°C for 48 hours and bacteria will show as red spots. A comparison chart is used to assess the level of bacteria.

For further information about water treatment service contracts for cooling towers contact us to talk through how we can help keep your cooling tower running efficiently and compliant with the latest HSE guidance for Legionella control.

Clean Cold Water Storage Tank

Why is water tank cleaning important for legionella control?

Ensuring the cleanliness of water tanks is essential for maintaining water hygiene standards. Here are three critical reasons why this practice is paramount:

  1. Eliminating Breeding Grounds for Legionella: Water tanks can become breeding grounds for Legionella bacteria if not properly maintained. Accumulated silt, scale, and sediment in tanks provide nutrients for bacteria growth. Additionally, without proper screening, organic matter like leaves or small rodents can contaminate the tanks, further exacerbating the issue. Cold water storage tanks, often overlooked, may harbor these contaminants unseen.

  2. Preventing Water Stagnation: Stagnant water fosters the growth of Legionella bacteria. Scale buildup can trap nutrients and form a biofilm, acting as a barrier to disinfectants. Regular draining and physical cleaning of water tanks help remove scale, sludge, and biofilm, thereby preventing bacterial proliferation.

  3. Meeting Legal Requirements: Compliance with legal regulations regarding the inspection, cleaning, and disinfection of water tanks is mandatory. Maintaining thorough records of these activities demonstrates proactive measures to prevent diseases like Legionnaires’ disease.

At Dantek, we offer comprehensive tank cleaning and disinfection services conducted by our in-house team of trained professionals. Detailed information, including photographs, is meticulously logged in a cloud-based compliance system, provided at no additional cost. This ensures easy access to crucial data concerning the condition of your storage tanks, facilitating prompt action when necessary.

Please contact sales@dantek.co.uk to see how it could work for you.

Recently we carried out a clean and disinfection of a large cold water storage tank, below are photos of before and after the cleaning process.  It is clear in figure 1 there was a high level of sediment visible in the water tank which needed to be removed to reduce the risk of legionella bacteria.

Image of a cold water storage tank before it is cleaned and chlorinated.
Visible sediment prior to cleaning and disinfection.
Before and after photo of a large cold water storage tank being cleaned and disinfected.
after cleaning and disinfection.

http://www.dantek.co.uk

Checking Temperature On A Calorifier

5 key issues to consider about Legionella and care homes

Legionnaires’ disease can cause serious illness and, in some cases, even death if it is not managed correctly.  It is contracted by breathing in droplets of air containing Legionella bacteria.  Legionella bacteria occurs naturally and enters the water system through the mains water supply.  Airborne water droplets are created by water systems such as showers, spa baths, hydrotherapy baths and hot and cold-water services such as spray taps.

While anyone could become infected there are some groups who are more susceptible, and these include the elderly and those with existing underlying health conditions.  Therefore, it is so important for Care Homes to act and put in place a robust management system and practical solutions to protect anyone in their care who may be at risk from the disease.

There are no known cases of Legionnaires’ disease from the natural environment, this is because it is only in man-made water systems where the conditions are right for the bacteria to proliferate.

Earlier this year the private care provider BUPA was fined £3m for failing to prevent and control an outbreak of Legionnaires’ disease when very sadly a resident died. Click on the link below to read more: https://www.healthandsafetyatwork.com/legionnaires-disease/bupa-kenneth-ibbetson

Checking temperature on a calorifier
Checking temperature on a calorifier

Where to start?

Controlling legionella in nursing and residential care homes starts with a legionella risk assessment of the hot and cold-water systems to ensure a scheme is put in place to control the risk.  Temperature is the usual method of control with systems operated at the required temperatures to prevent legionella bacteria from growing.  Hot water must be stored at 60°c and distributed at 50°c or higher to all outlets.  Thermostatic mixer valves may need to be fitted at outlets to prevent scalding.  Cold water must be stored and distributed at 20°c.

Regular checks need to be carried out in accordance with the risk assessment, some of these checks can be carried out by your own trained site staff or alternatively you can choose an experienced water hygiene company to do these on your behalf.  Whichever option you choose a key factor for compliance is the management of the control scheme which includes correct record keeping.

Cold water storage tanks must be visually inspected at least every 6 months and cleaned as required. The temperature of stored water must be checked to ensure it is 20°c or less.  Showerheads and hoses must be cleaned and descaled quarterly.   Calorifiers (hot water cylinders) need to be drained and internally cleaned and inspected annually.

It is also important to reduce the possibility of stagnating water in a system, so a risk assessment will identify dead-legs in the pipework which will need to be removed.  Little used outlets which can include showers and taps must be flushed weekly or removed to prevent stagnation.

Electronic log book

Using a cloud-based log book is one of the best ways to keep on top of all the monitoring tasks which need to be performed.  Dantek has developed an easy to use cloud-based system which we provide for free to all our contract customers.  The system ensures all your data for legionella compliance is held in one place and can be reported on and scrutinised, so you know where any problems are and what you need to do to rectify them.  For a short demo of the system please email info@dantek.co.uk.

5 key points to consider

  1. Do you have an up to date legionella risk assessment and control scheme in place?
  2. Who is the competent person to manage the risks from legionella?
  3. Are your water systems kept clean, with correct temperature controls and no stagnant water?
  4. Are you frequently checking temperatures remain in line with the ACoPL8 HSE guidance?
  5. Do you have accurate records in place to show external agencies?

Dantek is listed on the Legionella Control Association directory of companies who specialise in the prevention and control of legionella bacteria. Do get in touch if you would like to find out more about our legionella prevention and control plans.

Emma Reed

Employee profile: Emma Reed

When did you start working at Dantek?

I have been working at Dantek for 8 years, providing administrative support to the operations team.  I am responsible for producing certificates which are sent to customers for tank cleaning and disinfection work and reporting sample results to customers. 

I log all the samples taken by our engineers out on site and record them accurately including the customer, site, date, time, sample location (outlet) and sample type.  We take about 500 samples per month and each one must be carefully recorded onto a spreadsheet and submitted to the lab.

What type of samples do you deal with daily?

The most common samples I process are for Legionella, TVC (Total viable count), TVCC (total viable count and coliforms/e.coli), TVCC and pseudomonas aeruginosa taken for swimming pools.  LTHW closed system samples include TVC, NRB, SRB and Pseudomonas species.  Pseudomonas aeruginosa are often taken in health care premises.

All our samples are submitted to a UKAS accredited lab to be tested.  The lab emails me the results and I then take the necessary actions. This will include informing the account manager so they can decide on the next step including informing the customer of the results, I do this immediately when the results are positive.  With a Legionella sample, if serogroup 1 is detected this is the most serious and action will be required immediately. 

TVC are an indication of the total number of culturable bacteria in a given sample, with these we are looking at trends to indicate the bacterial activity in the water for example in a cooling tower. If any E. coli or coliforms are detected these are classed as a fail. 

When a sample has failed, we may advise a resample or where there have been multiple failures a disinfection is often required. It is important to consider past sample results and the level of detection in the sample.  In some instances, disinfection will not get the desired results so we may recommend that a chlorine dioxide system be installed.

What is a common question you often get asked by customers?

The most common question is how long will it take to get my results back?

12 days for final legionella results.  The lab inform us if there are any positive results on day 6 but these are interim results and could change. 

TVC results come back after approx. 5 days.  The lab will inform us if E.coli or coliforms are detected within 3 days.

SRB results take 21 days.  However we are able to supply the results for the other tests carried out alongside these (TVC, NRB, and Pseudomonas species) usually within 7 days.

Are there any factors which influence the samples?

Old buildings with old pipework and disused outlets can cause problems and increase the likelihood of getting a positive result.  Environmental factors like temperature can cause more bacteria to grow within systems so I did notice a spike in positive samples last summer for example.

It is very important to take the sample correctly and keep taps clean.  Little used outlets must be run weekly to prevent stagnation. Occasionally we can have issues with the way in which the sample was taken so following best practice is obviously the correct way to sample.  Our engineers are trained how to use aseptic techniques and follow specific procedures.

What do you enjoy most about your job?

I really like the people I work with and I am interested in the technical element of my work.  I am looking to improve my technical knowledge so I can advise customers and improve the service we offer. 

HSE Logo

HSE Legionella e bulletin

The HSE published another useful round up of the latest news about Legionnaires’ disease. It includes details of the prosecution in December 2018 of Tendring District Council pleaded guilty to breaching Section 3(1) of the Health and Safety at Work Act 1974 and was fined £ 27,000  plus £ 7,500 costs, after a member of the public contracted Legionnaires’ Disease from a leisure centre hot and cold water system.

There is also a very useful link to download free factsheets about Rapid Microbiological Testing Methods produced by the WMS. Information about events coming up and the HSE Water Treatment Contractor Intervention Programme.

To read the full bulletin click: HSE Legionella Ebulletin

You can subscribe to the HSE Legionella bulletin’s and have them delivered directly into your inbox, ensuring you are kept up to date on Legionella control.

Legionella Sample Testing

Legionella testing – when do you need to take legionella samples?

Legionella sampling
UKAS accredited Legionella sampling

Do I need to take Legionella samples? 

It is a common misconception that taking Legionella samples is a requirement for Legionella control in domestic hot and cold water systems.  In fact, microbiological monitoring of domestic hot and cold water is not normally a requirement for compliance with current guidance. However, Legionella sampling would be required in high risk situations or in systems where current controls are shown to be failing. For example, if temperature control is consistently unachievable or disinfection concentrations are not satisfactory then alternative precautions should be carried out such as weekly microbiological sampling.

In high risk properties such as hospitals and health care premises, taking samples is a requirement. For specific guidance on microbiological monitoring refer to the BS 7592:2008 – Sampling for Legionella Bacteria in Water Systems – code of practice. 

It is very important to know that taking Legionella tests from domestic water systems does not achieve compliance with the HSE guidance document The Control of Legionella Bacteria in Water Systems ACoP L8.  The first step to compliance is to carry out a Legionella risk assessment and, then, to put in place a control scheme based on the findings of the risk assessment.

Whilst the ACoPL8 guidance are not law, they are enforceable under the Health and Safety at Work Act 1974 and the Control of Substances Hazardous to Health (COSHH) regulations. A Legionella risk assessment will define actions required for compliance with the guidance, and provide a schedule for any required ongoing monitoring e.g. temperature and biological monitoring if required.   

How long does it take to get a legionella sample result?

The most common question about legionella samples is how long will the results take?  Legionella tests must be analysed at an independent UKAS accredited laboratory. The incubation time for a Legionella test, using the standard culture method, is 10 days, so this is not a quick test to carry out. In the event of a Legionella positive result, the customer will be informed immediately by phone or email with advice about what to do next.

Different methods are available for Legionella testing which reduce the time to get a result from the lab. Some methods can produce a result in as little as 24hours. Please contact the Dantek office for further information if a fast turnaround is required. 

Where do samples need to be taken?

For sites where Legionella monitoring is a requirement in hot and cold water systems, sampling should be carried out in accordance with: BS 7592 Sampling for Legionella Bacteria in Water Systems. Depending on the complexity of the system, the actual number of samples will be worked out. It is important to ensure the sample is representative of the water flowing around the system and not just of the area downstream of the fitting; samples should be taken from separate hot and cold outlets rather than through mixer taps or outlets downstream of TMVs or showers. This will help to identify where any potential colonisation is and will help to inform on appropriate actions going forward.

A sampling plan should be put in place detailing the sampling locations and the type of sampling to undertaken. Whenever possible, samples should be taken from locations considered most likely to contain the highest numbers of legionellae.

Locations for Legionella samples in cold water systems

  1. From the point of entry of the mains or nearest outlet to the point of entry into the building
  2. Cold water storage tanks
  3. From nearest & furthest outlets (Sentinel points) on each branch of the system

Locations for taking Legionella samples in hot water systems

  1. From the nearest outlet to the calorifier
  2. From the base of the calorifier
  3. From the nearest & furthest outlets (sentinel points) on each branch of the system for single pipe systems
  4. From nearest & furthest outlets (sentinel points) on each loop of a circulating system

How is a legionella sample taken?

The scope and type of sampling (pre or post flush) should be set out in the sampling plan. Methods for the different types of sampling are detailed below.  If not specified pre-flush samples will be taken as standard.

A sample will be collected in a new, unused, capped, sterile litre sample bottle using aseptic techniques.  This minimises the chance of cross contamination of the sample and reduces the risk of a resample being required.  The bottles need to be labelled with the exact location where the sample was taken and the exact time and date. 

Dantek Technicians are trained to take the sample using aseptic techniques to prevent cross-contamination.  It is important that the correct sampling technique is used to achieve the most accurate results so that correct preventative actions are completed.

What is an aseptic technique for Legionella sampling?

Aseptic sampling techniques reduce the likelihood of contamination and poor sample results.

When taking samples, the technician must observe the following best practice:

  • Never touch the neck of the bottle or the inside of the lid
  • Ensure the bottle does not come into contact anything which may introduce contamination
  • Do not rinse the bottle out prior to the sample being taken
  • Minimise the time that the bottle is open to atmosphere
  • Only use the correct sterile bottle containing sodium thiosulphate or appropriate neutraliser.
  • Wash hands when sampling
  • Use hand sanitiser when sampling
  • Samples must reach the lab within 48 hours
  • Correct transport procedures should be followed
  • Ensure an air gap is left in the sample bottle

When taking a sample from a cold-water storage tank, the samples are to be taken from the centre of the tank where possible, taking care not to collect any solids.  Move the bottle forward through the water during sampling, ensuring water is only collected from in front of the bottle.

Steps to taking a Legionella sample:

  • Legionella samples must be taken in 1 litre sterile sample bottles containing sodium thiosulphate capable of neutralising up to 5ppm of free chlorine without effecting the bacteriological population.
  • Samples bottles, which are checked to ensure they are in date.
  • Samples bottles are checked before use to ensure that the lid seal is still intact.

Prior to removing the lid, the bottle should be marked with a permanent pen detailing the following information;

  • Customer
  • Site
  • Location of sample, building name, room location, cold water storage tank, calorifier, cooling tower sump, spa pool etc.
  • System identification, mains cold water, tank feed cold, domestic hot.
  • Pre or post-flush
  • Date & time of sample
  • Temperature of the water and/or chlorine dioxide reserve

How to take a pre-flush sample?

  • Do not disinfect the tap/outlet
  • Collect the sample immediately after the tap, or fitting, is opened, ensuring that the sample consists of only the first water which leaves the outlet.
  • Continue to fill the bottle leaving a 1 cm air gap at the top of the bottle.
  • Immediately replace the cap and invert the bottle several times.
  • Place the sample in a cool box and return to the office the same day.

How to take a post-flush sample?

  • Flush approximately 1 litre of water from the outlet.
  • Remove spray any inserts and flow directors from the outlet. It may also be necessary to remove and strainers and non return valves from TMV’s, strainers and solenoid valves.
  • Whilst wearing protective googles & gloves, make up a 200ppm solution of chlorine.
  • Clean the outside of the tap using the disinfectant solution.
  • Inject disinfectant solution into the outlet until it begins to run out of the tap using a wash bottle.
  • Descale and disinfect inserts and flow directors
  • Allow a two-minute contact time for the disinfection to take place.
  • Flush the outlet for 1 minute to remove the disinfectant.
  • Fill the sample bottle without adjusting the flow of water leaving a 1 cm air gap at the top of the bottle.
  • Immediately replace the cap and invert the bottle several times.
  • Place the sample in a cool box and return to the office the same day.
  • Rinse the outlet and surrounding area to remove any remaining disinfectant.

What should I do if the legionella sample comes back positive?

Firstly, don’t panic get in touch with Dantek and we will be able to guide you through the next steps to ensure you deal with the results in the correct way and to ensure your system is back under control as quickly as possible.  What action to take depends largely on the results and if this is the first positive result for the system.

If the first positive Legionella result is less than 1000cfu/ml:

If the minority of sample results are positive but less than 1000cfu/ml then arrange for a re-sample as soon as possible and review the control measures and risk assessment.

If the majority of the samples are positive but again with less than 1000cfu/ml then there is the possibility the system could be colonised at a low level.  Immediate review of control measures and risk assessment are needed and disinfection of the system must be considered.

If the 1st positive Legionella result is greater than 1000cfu/ml take the following action:

  • Arrange for a re-sample to be taken as soon as possible
  • Shut down any processes on the system where the positive sample was taken that can generate and disseminate airborne water droplets
  • Disinfect the system
  • Keep them shut down until sampling procedures and any remedial cleaning or other work has been done
  • Retest a few days after the disinfection and at frequent intervals afterwards until a satisfactory level of control is regained.
  • Review the risk assessment and control measures.

Following positive Legionella results a review of the Legionella risk assessment, control regime and record keeping/log books should be reviewed by checking the following:

  • They are current, up to date and accurate
  • That any remedial actions/recommendations have been completed
  • That the recommended control regime is in place. Identify the failing areas if there are any.
  • That good records are being kept of the activities undertaken
  • A record of the audit including any changes is placed in the log book

The question of whether to take samples or not can seem daunting however the key point to remember is taking samples will not affect levels of contamination on its own and does not necessarily offer compliance with the ACoPL8.  Ensure you keep your legionella risk assessment and control scheme up to date and seek advice from your water hygiene contractor.  If you have any concerns about Legionella samples, do get in touch with us as we are best placed to advice you about the Legionella control on your site.

Further reading:

http://www.hse.gov.uk/pubns/priced/hsg274part2.pdf

BS 7592:2008 Sampling for Legionella bacteria in water systems – code of practice

Public Health England report on Legionnaires’ disease

How many cases of Legionnaires’ disease were there in 2018?

Read about the latest number of confirmed cases of Legionnaires’ disease in England and Wales since January 2018. The report gives a breakdown of where the cases occurred geographically and how it was contracted, for example, whether it was through travel or in the community.

Monthly legionella report November 2018 (PDF download)

Do get in touch if you have any concerns about how to prevent and control legionella bacteria and what you are legally required to do to keep your water safe.

New office in Staffordshire

Expanding Legionella Control Services in Staffordshire

Legionella control Staffordshire: In response to the successful expansion of our business in the Midlands region over the past year, Dantek is proud to announce the opening of a new office in Staffordshire. This strategic move allows us to better serve both new and existing clients in the Midlands area. Over the initial 12-month period, our central team has secured multiple contracts.

With over two decades of collective experience in legionella control, our Midlands team is led by Holly Jakes, a seasoned professional with a decade of tenure at Dantek. Holly’s unwavering dedication to maintaining the highest service standards and preventing Legionnaires’ disease has been instrumental in driving our growth in the region, all while upholding Dantek’s core values.

Reflecting on our achievements, Holly remarked, “The past year has been marked by significant success, with Dantek’s reputation in the Midlands spreading through word of mouth and recommendations. Our comprehensive services cover all aspects of legionella control, from risk assessments to monthly water monitoring, water treatment, cooling towers, and plumbing remedials. While we benefit from the support of our Thornbury head office, our local management ensures a seamless experience for our clients, from initial inquiry to project completion.”

Based in Cannock and Gloucester, our central team continues to expand, collaborating closely with local businesses, schools, and universities to promote water safety and hygiene.

For more information on how Dantek can assist you in safeguarding your water systems, please contact sales@dantek.co.uk.

http://www.dantek.co.uk

Power Flushing at the O2 arena

Power Flushing: The expert power flushing team at Dantek recently deployed their latest Kamco power flushing pump at the renowned O2 arena in London. This cutting-edge pump is specifically designed for pre-commission flushing of smaller circuits, filling a crucial need where traditional system pumps may not be available. Currently engaged in pre-commission cleaning of heat and chilled circuits for air handling units serving new retail units at the O2 arena, Dantek is committed to delivering exceptional service quality.

According to Steve Sims, Mechanical Supervisor at Dantek, “The new Flushing unit represents a significant upgrade over its predecessor. With the addition of wheels, maneuvering the unit has become much easier. Additionally, the new connections manifold enhances safety, significantly reducing the risk of spillages.” This investment in advanced equipment reflects Dantek’s dedication to maintaining and enhancing their world-class service delivery standards.

Continually investing in state-of-the-art equipment, Dantek ensures they stay at the forefront of their field, providing unmatched solutions to their clients. For professional power flushing services and more, call Dantek now at 01454 417 920.

Email sales@dantek.co.uk

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