Consultancy that helps

© 2016-2019. Collaton Consultancy Limited, 8 Grampian Close, Collaton St Mary, Paignton Devon, TQ4 7GD, UK

Site Map UK Company Registration number 9930189

Expert choice

Blog archive

Tuesday, 13 | 03 | 2018

The HSE compare against a range of standards when deciding on compliance, these standards are termed “Defined standard”, “Established standard” and “Interpretative standard” with Defined standards being the most authoritative. If you want to read more about these standards and how they are applied download the HSE “Enforcement Management Model” here. Tuesday, 06 | 03 | 2018 Water molecules have unusual chemical and physical properties. Water can exist in all three states of matter at the same time: liquid, gas, and solid. Imagine that you’re sitting in your hot tub (filled with liquid water) watching the steam (gas) rise from the surface as you enjoy a cold drink from a glass filled with ice (solid) cubes. Very few other chemical substances can exist in all these physical states in this close of a temperature range.

Tuesday, 27 | 02 | 2018

Workplace Exposure Levels (WEL) are British occupational exposure limits and are set in order to protect the health of workers. WELs are concentrations of hazardous substances in the air, averaged over a specified period of time, referred to as a time-weighted average (TWA). Two time periods are used: a) long-term (8 hours); and b) short-term (15 minutes). Read more in EH40.

Tuesday, 20 | 02 | 2018

Collaton Consultancy launch a new online training course in Basic Legionella Management to help you comply with your statutory needs of complying with L8 and HSG 274.

Tuesday, 13 | 02 | 2018

An interesting paper by Harriet Whiley et al (doi: 10.3389/fmicb.2017.01330) describes how attempting to get rid of Legionella bacteria by pasteurisation can actually increase the numbers of Legionella present and increase their tolerance to temperatures. Careful consideration should be given to any method for attempting to remove Legionella bacteria. Contact us to discuss your needs. Email us.

Tuesday, 06 | 02 | 2018

About 90% of cases of Legionnaires' disease are caused by Legionella pneumophila serogroup 1 but is that because the confirmatory test most commonly used is a urinary antigen test specific for Legionella pneumophila serogroup 1. Hospitals rarely test for other Legionella species or Lp serogroups in patients so might this be skewing the numbers?

Tuesday, 30 | 01 | 2018

Do you want to understand more about how biofilms affect microbially influenced corrosion? Download this technical paper. If you want more information on biofilms then contact us on general@collatonconsultancy.com

Tuesday, 23 | 01 | 2018

Do you use chlorine dioxide, either as a water treatment supplier or as a customer using it on site? This article provides useful information on the use, and technical information regarding, chlorine dioxide. Download here.

Tuesday, 16 | 01 | 2018

If you run a Holiday or Residential Park you may be interested in this guide from WRAS. Download here.

Tuesday, 09 | 01 | 2018

If you operate a swimming pool be aware of the problem of grout erosion. Ideally the sulfate concentration (SO3) of water in swimming pools should not exceed 300 mg/l. Where greater concentrations of sulfates cannot be avoided, impermeable adhesives and grouting materials that are not affected by sulfates should be used. High levels of sulfate would otherwise react with and erode materials containing Portland cement

Tuesday, 02 | 01 | 2018

Do you need some quick hints at managing Legionella, the HSE released some useful videos which you can watch here.

Tuesday, 26 | 12 | 2017

High boiler alkalinity increases the pH and therefore can contribute towards foaming in the boiler. This leads to boiler water carryover into the steam causing wet steam which will reduce steam efficiency and may contribute to corrosion of the condensate if the materials of construction do not like high pH’s, such as copper.

Tuesday, 19 | 12 | 2017

Collaton Consultancy Limited is an Independent consultancy, the Oxford English Dictionary defines Independent as: “Free from outside control; not subject to another's authority. Capable of thinking or acting for oneself. Not influenced by others; impartial.” This truly describes how we act on your behalf.

Tuesday, 12 | 12 | 2017

Do you manage a steam boiler? Are you compliant with BG01, BG04 and a host of other laws and guidance? Contact Collaton Consultancy Limited for a discussion on how we can independently help you comply with these guideines. Download a BG01 logbook here.

Tuesday, 05 | 12 | 2017

Based on the results obtained the Responsible Person should arrange to have non- conformances acted upon in an “intelligent” way not a “standard” way. If you want to learn more tips from an Expert Witness then click here.

Tuesday, 28 | 11 | 2017

L8 and HSG 274 require you to have a Written Scheme, one part of which is “remedial action to be taken in the event that the scheme is shown not to be effective, including control scheme reviews and any modifications made”. In other words you should write a series of “what-ifs” so that if something is awry you know what to do. If you need help contact us.

Tuesday, 21 | 11 | 2017

Water births at home can lead to an increased risk of Legionnaires’ disease in babies. Proponents of water birth rely on claims that a protective primitive reflex prevents such aspiration by the infant until the umbilical cord is cut. Evidence has shown that that reflex can be overridden. As a result the Department of Health release an alert to warn parents of this problem. Download the alert here.

Tuesday, 14 | 11 | 2017

The milligrams per liter (mg/L) convention is closely related to parts per million (ppm). This relationship is given by: ppm x specific gravity = mg/L Thus, if the solution density is close or equal to 1, then ppm = mg/L. This is normally the case in dilute, aqueous solutions of the type typically found in industrial water systems.

Tuesday, 07 | 11 | 2017

HSG 274 Part 2: were you aware that there is a paper version and and 2 electronic versions? Were you also aware that the paper version has different parameters in it for controls as seen in Table 2.1. If you look at the paper version (page 76) the Combination Boilers temperature control is 50-60 o C. If you look at the electronic version dated 04/14 on page 65, page 32, the same control is 55-60 o C. If you look at the electronic version dated 06/14 the control temperature is 50-60 o C. The HSE have always said that updates will take place on line so the moral of the story is to make sure the version of HSG 274 that you are working with is the latest electronic download from the HSE website.

Tuesday, 31 | 10 | 2017

For Legionella to survive within macrophages and protozoa, it must create a specialized compartment known as the Legionella containing vacuole (LCV). Through the action of the Dot/Icm secretion system, the bacteria are able to prevent degradation by the normal endosomal trafficking pathway and instead replicate. Read more on the role of biofilms and protozoa in Legionella pathogenesis

Tuesday, 24 | 10 | 2017

Food manufacturers reuse water irrigation of landscaping, truck washing, cooling towers and warehouse floor washing. Incrementally, food manufacturers also collect, treat for safety, and reuse water from specific processes. But at no time do they apply the collected water for productive food use. Download your free Waste & Resources Action Programme guide.

Tuesday, 17 | 10 | 2017

A Spanish man may have contracted Legionnaires' disease from exposure to street cleaning trucks, researchers found. Writing in Emerging Infectious Diseases, the authors detailed the case of a 58-year-old man diagnosed with Legionnaire's disease, whose only exposure to aerosolized water was through "occupational exposure to high-pressure hoses from street cleaning trucks." The researchers took samples from the four trucks used prior to symptom onset and found Legionella pneumophila serogroup 1 in both the water and internal foam of two of the trucks.

Tuesday, 10 | 10 | 2017

Previous confusion over what UK Landlords had to do to comply with L8 and HSG 274 has been clarified by the HSE. You can download a extract from the HSE website here.

Tuesday, 03 | 10 | 2017

Do you know how to wash your hands properly to prevent the spread of Pseudomonas aeruginosa? This is a critical subject for Augmented Care areas of a Hospital so read a report on Hand Hygiene here.

Tuesday, 26 | 09 | 2017

The levels of Legionnaires’ disease in England and Wales continue to show an increase in 2017 vs 2016. Read more here. (click on graph, left, to see an enlarged version).

Tuesday, 19 | 09 | 2017

Is your building sick? HSG 132 explains how to determine if it is and how to resolve it. Download HSG 132 here.

Tuesday, 12 | 09 | 2017

Water Safety Groups (WSG) in the NHS are a key tool to managing water safety at hospitals. So it is important that it functions smoothly, information on the WSG can be found here. However some key concepts fro a WSG are: It should set the strategic direction for the site(s); it should determine the highest risk areas (normally augmented care); it should ensure an effective Water Safety Plan (WSP) is developed and it should oversee water safety on site(s). The WSG should empower staff to manager all aspects of water safely on site and help manage risk.

Tuesday, 05 | 09 | 2017

The worlds first patent for a water treatment chemical was granted in 1876 for a chemical that was described as a “greasy oriental extraction”, it was used as a scale and corrosion inhibitor for steam boilers. Prior to this chemical lumps of tree bark, horses heads and pigs trotters were added to steam boilers to revent these problems. The chemical was extracted from tree bark, specifically mimosa and quebracho, and was a tannin based product. The product in the patent was called “Disencrustant Marsellaise”. It retained this name until about 2002/3 when the original company merged with a larger one and product rationalisation overcame the historical name.

Tuesday, 29 | 08 | 2017

The importance of good water treatment and staff that are well trained, both the customer and the water treatment company, is well highlighted in an article on the HSE website regarding the dangers of corrosion of water tube boilers. For more information read here.

Tuesday, 22 | 08 | 2017

The use of tap aerators is not allowed in UK hospitals, as described in HTM 04-01 “When selecting new taps, HBN 00-09 advises against using aerators, strainers and flow restrictors at the point of discharge”. This technical paper describes the biology behind this requirement. Download here.

Tuesday, 15 | 08 | 2017

Biocides are covered by the Biocidal Product Regulations that cover chemicals sold as biocides throughout Europe. This makes choosing biocides for your application, whether it be for hot and cold waters or for cooling systems more complex. Details of these regulations can be found at http://www.hse.gov.uk/biocides/index.htm

Tuesday, 08 | 08 | 2017

There is a British Standard Code of Practice regarding sampling closed systems, it is called BS8552:2012. The purpose of sampling a closed-circuit water system is to provide information about the current condition of that system and/or the water within it. To find out more about this subject read the Collaton Consultancy Limited précis here.

Tuesday, 01 | 08 | 2017

Did you know that the WHO Guidelines on hand washing amount to 270 pages, all very interesting in preventing nosocomial illnesses, including from Pseudomonas but if you want a more succinct version that summarises the information click here. If you do want the full WHO version then click here.

Tuesday, 25 | 07 | 2017

In October 2017 the sentencing guidelines will change for the Corporate Manslaughter Act, read more about those changes here….

Tuesday, 18 | 07 | 2017

Is Chlorine Dioxide a good solution for use in a hospital to prevent Legionella and Pseudomonas? Here is a PhD thesis following a study in the USA by Zhe Zhang. which suggest so.

Tuesday, 11 | 07 | 2017

Legionella infection linked to travel is associated with particular features of staying in accommodation designed for short stays and where occupation may be on a seasonal or intermittent basis. The use of the water facilities may be intermittent with the potential for long periods of stagnation. For example, during the low season, room occupancy may be low with sections of the hotel or even the whole hotel closed. Read more….

Tuesday, 04 | 07 | 2017

A quote from Henry Ford: “If you always do what you’ve always done, you’ll always get what you’ve always got”. A quote from Albert Einstein: “The definition of Insanity: doing the same thing over and over again and expecting different results”. Why don’t you try something different and see what the outcome is, you might surprise yourself.

Tuesday, 27 | 06 | 2017

A scientific study carried out by A. Lasheras et al found that water quality had an important role on the presence and proliferation of Legionella species. Hardness salts or the presence of amoeba were associated with the presence of Legionella species but did not promote proliferation. Conversely temperature and pH were not correlated with the presence of Legionella species but did promote their proliferation. Download the full paper here.

Tuesday, 20 | 06 | 2017

Did you know you can catch Legionnaires’ disease in the most unexpected ways, first there was windscreen washer bottles, then there was home birthing pools and the latest news is hose-pipes left lying in the sun. You can read about this unfortunate case here… Read more

Tuesday, 13 | 06 | 2017

Here are the names of two excellent books worth reading if you have to train sales people: “How to sell against competition” by John Fenton. ISBN0-434-90575-5 and “Training salesmen on the job” by John Lidstone. ISBN 0-7161-0266-8. I have used these two books all of my career and would recommend them as a source of ideas helping you increase your sales.

Tuesday, 06 | 06 | 2017

Did you know that in an average sized swimming pool there are about 75 litres of urine. This urine reacts with the chlorine in the pool to form chloramines which reduces the available biocide to kill bacteria and also these chloramines are what make your eyes sting. So if you enter a pool and it makes your eyes sting, smells very strongly of chlorine (which is in fact the chloramines) then it may not be safe.

Tuesday, 30 | 05 | 2017

Legionella bacteria themselves can be inactivated by UV light. However, Legionella bacteria that grow and reproduce in amoebae or that are sheltered in corrosion particles cannot be killed by UV light alone. This is because UV light has no ability to penetrate deposits.

Tuesday, 23 | 05 | 2017

Everyone believes that Legionella bacteria cause lung infections, well here is a strange case of a hand injury with a break in the skin becoming infected with Legionella longbeachae. Download the scientific paper here.

Tuesday, 16 | 05 | 2017

Lessons to be learned from an experienced Expert Witness. Nigel Richardson describes some learning points based on the cases he has been involved with. Read more….

Tuesday, 09 | 05 | 2017

Nigel Richardson has been elected as a Fellow of the Institute of Healthcare Engineering and Estate Management (FIHEEM). This supports Nigel’s commitment to acting as an Authorising Engineer (Water) for hospitals.

Tuesday, 02 | 05 | 2017

Legionella bacteria are not limited to water, potting composts are also a risk…. Read more….

Tuesday, 25 | 04 | 2017

If you thought a cooling tower was a simple and predictable environment then take a look at this article on viruses and amoeba found in cooling towers. Read more….

Tuesday, 18 | 04 | 2017

Spanish Royal Decree 865/2003. The measures contained in this royal decree shall apply to the installations that use water in their operation, produce aerosols and are situated inside or outside buildings for collective use, industrial installations or means of transport which may be susceptible to becoming focal points for the propagation of the disease, during their operation, service tests or maintenance Read more

Tuesday, 11 | 04 | 2017

Legionella pneumophila isolates can be characterized using one of three systems: sequence based typing, serogroups or MAb subtyping (Monoclonal Antibody). Sequence typing is generally more precise, however generally serogroups are most commonly analysed for due to cost and complexity of testing.

Tuesday, 04 | 04 | 2017

Legionella pneumophila is the predominant species of Legionnaires’ disease causing bacteria in Europe however in Australasia and South-east Asia the predominant species is Legionella longbeachae. It exists in soils and can lead to Legionnaires’ disease by exposure to compost, soils and potting mixes. Within the UK most Legionella longbeachae related cases have occurred in Scotland where 6 cases were diagnosed between 2008 and 2012.

Tuesday, 28 | 03 | 2017

Recent quote from a satisfied client: “I was very satisfied with Mr Richardson. His report was detailed and he explained himself clearly in a conference with counsel... He was very knowledgeable and gave a common sense and well reasoned opinion.”…..UK Register of Expert Witnesses.

Tuesday, 21 | 03 | 2017

Managing heat exchanger cleans using the approach temperature. Using this simple technique, a cooling system heat exchanger can be checked to determine when cleaning is required. The approach temperature used in a shell and tube heat exchanger is simply…. Read more

Tuesday, 14 | 03 | 2017

Collaton Consultancy Limited announce the new appointment booking site. If you want to arrange a discussion or meeting with our staff regarding your issues then as well as phoning you can use the automated appointment booking site for your ease. Click here to access it.

Tuesday, 7 | 03 | 2017

If you find writing a written scheme is a daunting task, after all it could run to over 50 pages for a suitable and sufficient document, then let Collaton Consultancy Limited write one for you. Using the skills and knowledge acquired over many years and the draft skeleton format we can create one quickly to suit your specific needs. Email for more information and pricing.

Consultancy that helps

© 2016-2019 Collaton Consultancy Limited, 8 Grampian Close,

Collaton St Mary, Paignton Devon, TQ4 7GD, United Kingdom. UK

Company Registration number 9930189

Site Map

Expert choice

Blog archive

Tuesday, 13 | 03 | 2018

The HSE compare against a range of standards when deciding on compliance, these standards are termed “Defined standard”, “Established standard” and “Interpretative standard” with Defined standards being the most authoritative. If you want to read more about these standards and how they are applied download the HSE “Enforcement Management Model” here. Tuesday, 06 | 03 | 2018 Water molecules have unusual chemical and physical properties. Water can exist in all three states of matter at the same time: liquid, gas, and solid. Imagine that you’re sitting in your hot tub (filled with liquid water) watching the steam (gas) rise from the surface as you enjoy a cold drink from a glass filled with ice (solid) cubes. Very few other chemical substances can exist in all these physical states in this close of a temperature range.

Tuesday, 27 | 02 | 2018

Workplace Exposure Levels (WEL) are British occupational exposure limits and are set in order to protect the health of workers. WELs are concentrations of hazardous substances in the air, averaged over a specified period of time, referred to as a time-weighted average (TWA). Two time periods are used: a) long-term (8 hours); and b) short-term (15 minutes). Read more in EH40.

Tuesday, 20 | 02 | 2018

Collaton Consultancy launch a new online training course in Basic Legionella Management to help you comply with your statutory needs of complying with L8 and HSG 274.

Tuesday, 13 | 02 | 2018

An interesting paper by Harriet Whiley et al (doi: 10.3389/fmicb.2017.01330) describes how attempting to get rid of Legionella bacteria by pasteurisation can actually increase the numbers of Legionella present and increase their tolerance to temperatures. Careful consideration should be given to any method for attempting to remove Legionella bacteria. Contact us to discuss your needs. Email us.

Tuesday, 06 | 02 | 2018

About 90% of cases of Legionnaires' disease are caused by Legionella pneumophila serogroup 1 but is that because the confirmatory test most commonly used is a urinary antigen test specific for Legionella pneumophila serogroup 1. Hospitals rarely test for other Legionella species or Lp serogroups in patients so might this be skewing the numbers?

Tuesday, 30 | 01 | 2018

Do you want to understand more about how biofilms affect microbially influenced corrosion? Download this technical paper. If you want more information on biofilms then contact us on general@collatonconsultancy.com

Tuesday, 23 | 01 | 2018

Do you use chlorine dioxide, either as a water treatment supplier or as a customer using it on site? This article provides useful information on the use, and technical information regarding, chlorine dioxide. Download here.

Tuesday, 16 | 01 | 2018

If you run a Holiday or Residential Park you may be interested in this guide from WRAS. Download here.

Tuesday, 09 | 01 | 2018

If you operate a swimming pool be aware of the problem of grout erosion. Ideally the sulfate concentration (SO3) of water in swimming pools should not exceed 300 mg/l. Where greater concentrations of sulfates cannot be avoided, impermeable adhesives and grouting materials that are not affected by sulfates should be used. High levels of sulfate would otherwise react with and erode materials containing Portland cement

Tuesday, 02 | 01 | 2018

Do you need some quick hints at managing Legionella, the HSE released some useful videos which you can watch here.

Tuesday, 26 | 12 | 2017

High boiler alkalinity increases the pH and therefore can contribute towards foaming in the boiler. This leads to boiler water carryover into the steam causing wet steam which will reduce steam efficiency and may contribute to corrosion of the condensate if the materials of construction do not like high pH’s, such as copper.

Tuesday, 19 | 12 | 2017

Collaton Consultancy Limited is an Independent consultancy, the Oxford English Dictionary defines Independent as: “Free from outside control; not subject to another's authority. Capable of thinking or acting for oneself. Not influenced by others; impartial.” This truly describes how we act on your behalf.

Tuesday, 12 | 12 | 2017

Do you manage a steam boiler? Are you compliant with BG01, BG04 and a host of other laws and guidance? Contact Collaton Consultancy Limited for a discussion on how we can independently help you comply with these guideines. Download a BG01 logbook here.

Tuesday, 05 | 12 | 2017

Based on the results obtained the Responsible Person should arrange to have non-conformances acted upon in an “intelligent” way not a “standard” way. If you want to learn more tips from an Expert Witness then click here.

Tuesday, 28 | 11 | 2017

L8 and HSG 274 require you to have a Written Scheme, one part of which is “remedial action to be taken in the event that the scheme is shown not to be effective, including control scheme reviews and any modifications made”. In other words you should write a series of “what-ifs” so that if something is awry you know what to do. If you need help contact us.

Tuesday, 21 | 11 | 2017

Water births at home can lead to an increased risk of Legionnaires’ disease in babies. Proponents of water birth rely on claims that a protective primitive reflex prevents such aspiration by the infant until the umbilical cord is cut. Evidence has shown that that reflex can be overridden. As a result the Department of Health release an alert to warn parents of this problem. Download the alert here.

Tuesday, 14 | 11 | 2017

The milligrams per liter (mg/L) convention is closely related to parts per million (ppm). This relationship is given by: ppm x specific gravity = mg/L Thus, if the solution density is close or equal to 1, then ppm = mg/L. This is normally the case in dilute, aqueous solutions of the type typically found in industrial water systems.

Tuesday, 07 | 11 | 2017

HSG 274 Part 2: were you aware that there is a paper version and and 2 electronic versions? Were you also aware that the paper version has different parameters in it for controls as seen in Table 2.1. If you look at the paper version (page 76) the Combination Boilers temperature control is 50-60 o C. If you look at the electronic version dated 04/14 on page 65, page 32, the same control is 55- 60 o C. If you look at the electronic version dated 06/14 the control temperature is 50-60 o C. The HSE have always said that updates will take place on line so the moral of the story is to make sure the version of HSG 274 that you are working with is the latest electronic download from the HSE website.

Tuesday, 31 | 10 | 2017

For Legionella to survive within macrophages and protozoa, it must create a specialized compartment known as the Legionella containing vacuole (LCV). Through the action of the Dot/Icm secretion system, the bacteria are able to prevent degradation by the normal endosomal trafficking pathway and instead replicate. Read more on the role of biofilms and protozoa in Legionella pathogenesis

Tuesday, 24 | 10 | 2017

Food manufacturers reuse water irrigation of landscaping, truck washing, cooling towers and warehouse floor washing. Incrementally, food manufacturers also collect, treat for safety, and reuse water from specific processes. But at no time do they apply the collected water for productive food use. Download your free Waste & Resources Action Programme guide.

Tuesday, 17 | 10 | 2017

A Spanish man may have contracted Legionnaires' disease from exposure to street cleaning trucks, researchers found. Writing in Emerging Infectious Diseases, the authors detailed the case of a 58- year-old man diagnosed with Legionnaire's disease, whose only exposure to aerosolized water was through "occupational exposure to high- pressure hoses from street cleaning trucks." The researchers took samples from the four trucks used prior to symptom onset and found Legionella pneumophila serogroup 1 in both the water and internal foam of two of the trucks.

Tuesday, 10 | 10 | 2017

Previous confusion over what UK Landlords had to do to comply with L8 and HSG 274 has been clarified by the HSE. You can download a extract from the HSE website here.

Tuesday, 03 | 10 | 2017

Do you know how to wash your hands properly to prevent the spread of Pseudomonas aeruginosa? This is a critical subject for Augmented Care areas of a Hospital so read a report on Hand Hygiene here.

Tuesday, 26 | 09 | 2017

The levels of Legionnaires’ disease in England and Wales continue to show an increase in 2017 vs 2016. Read more here. (click on graph, left, to see an enlarged version).

Tuesday, 19 | 09 | 2017

Is your building sick? HSG 132 explains how to determine if it is and how to resolve it. Download HSG 132 here.

Tuesday, 12 | 09 | 2017

Water Safety Groups (WSG) in the NHS are a key tool to managing water safety at hospitals. So it is important that it functions smoothly, information on the WSG can be found here. However some key concepts fro a WSG are: It should set the strategic direction for the site(s); it should determine the highest risk areas (normally augmented care); it should ensure an effective Water Safety Plan (WSP) is developed and it should oversee water safety on site(s). The WSG should empower staff to manager all aspects of water safely on site and help manage risk.

Tuesday, 05 | 09 | 2017

The worlds first patent for a water treatment chemical was granted in 1876 for a chemical that was described as a “greasy oriental extraction”, it was used as a scale and corrosion inhibitor for steam boilers. Prior to this chemical lumps of tree bark, horses heads and pigs trotters were added to steam boilers to revent these problems. The chemical was extracted from tree bark, specifically mimosa and quebracho, and was a tannin based product. The product in the patent was called “Disencrustant Marsellaise”. It retained this name until about 2002/3 when the original company merged with a larger one and product rationalisation overcame the historical name.

Tuesday, 29 | 08 | 2017

The importance of good water treatment and staff that are well trained, both the customer and the water treatment company, is well highlighted in an article on the HSE website regarding the dangers of corrosion of water tube boilers. For more information read here.

Tuesday, 22 | 08 | 2017

The use of tap aerators is not allowed in UK hospitals, as described in HTM 04-01 “When selecting new taps, HBN 00-09 advises against using aerators, strainers and flow restrictors at the point of discharge”. This technical paper describes the biology behind this requirement. Download here.

Tuesday, 15 | 08 | 2017

Biocides are covered by the Biocidal Product Regulations that cover chemicals sold as biocides throughout Europe. This makes choosing biocides for your application, whether it be for hot and cold waters or for cooling systems more complex. Details of these regulations can be found at http://www.hse.gov.uk/biocides/index.htm

Tuesday, 08 | 08 | 2017

There is a British Standard Code of Practice regarding sampling closed systems, it is called BS8552:2012. The purpose of sampling a closed- circuit water system is to provide information about the current condition of that system and/or the water within it. To find out more about this subject read the Collaton Consultancy Limited précis here.

Tuesday, 01 | 08 | 2017

Did you know that the WHO Guidelines on hand washing amount to 270 pages, all very interesting in preventing nosocomial illnesses, including from Pseudomonas but if you want a more succinct version that summarises the information click here. If you do want the full WHO version then click here.

Tuesday, 25 | 07 | 2017

In October 2017 the sentencing guidelines will change for the Corporate Manslaughter Act, read more about those changes here….

Tuesday, 18 | 07 | 2017

Is Chlorine Dioxide a good solution for use in a hospital to prevent Legionella and Pseudomonas? Here is a PhD thesis following a study in the USA by Zhe Zhang. which suggest so.

Tuesday, 11 | 07 | 2017

Legionella infection linked to travel is associated with particular features of staying in accommodation designed for short stays and where occupation may be on a seasonal or intermittent basis. The use of the water facilities may be intermittent with the potential for long periods of stagnation. For example, during the low season, room occupancy may be low with sections of the hotel or even the whole hotel closed. Read more….

Tuesday, 04 | 07 | 2017

A quote from Henry Ford: “If you always do what you’ve always done, you’ll always get what you’ve always got”. A quote from Albert Einstein: “The definition of Insanity: doing the same thing over and over again and expecting different results”. Why don’t you try something different and see what the outcome is, you might surprise yourself.

Tuesday, 27 | 06 | 2017

A scientific study carried out by A. Lasheras et al found that water quality had an important role on the presence and proliferation of Legionella species. Hardness salts or the presence of amoeba were associated with the presence of Legionella species but did not promote proliferation. Conversely temperature and pH were not correlated with the presence of Legionella species but did promote their proliferation. Download the full paper here.

Tuesday, 20 | 06 | 2017

Did you know you can catch Legionnaires’ disease in the most unexpected ways, first there was windscreen washer bottles, then there was home birthing pools and the latest news is hose-pipes left lying in the sun. You can read about this unfortunate case here… Read more

Tuesday, 13 | 06 | 2017

Here are the names of two excellent books worth reading if you have to train sales people: “How to sell against competition” by John Fenton. ISBN0- 434-90575-5 and “Training salesmen on the job” by John Lidstone. ISBN 0-7161-0266-8. I have used these two books all of my career and would recommend them as a source of ideas helping you increase your sales.

Tuesday, 06 | 06 | 2017

Did you know that in an average sized swimming pool there are about 75 litres of urine. This urine reacts with the chlorine in the pool to form chloramines which reduces the available biocide to kill bacteria and also these chloramines are what make your eyes sting. So if you enter a pool and it makes your eyes sting, smells very strongly of chlorine (which is in fact the chloramines) then it may not be safe.

Tuesday, 30 | 05 | 2017

Legionella bacteria themselves can be inactivated by UV light. However, Legionella bacteria that grow and reproduce in amoebae or that are sheltered in corrosion particles cannot be killed by UV light alone. This is because UV light has no ability to penetrate deposits.

Tuesday, 23 | 05 | 2017

Everyone believes that Legionella bacteria cause lung infections, well here is a strange case of a hand injury with a break in the skin becoming infected with Legionella longbeachae. Download the scientific paper here.

Tuesday, 16 | 05 | 2017

Lessons to be learned from an experienced Expert Witness. Nigel Richardson describes some learning points based on the cases he has been involved with. Read more….

Tuesday, 09 | 05 | 2017

Nigel Richardson has been elected as a Fellow of the Institute of Healthcare Engineering and Estate Management (FIHEEM). This supports Nigel’s commitment to acting as an Authorising Engineer (Water) for hospitals.

Tuesday, 02 | 05 | 2017

Legionella bacteria are not limited to water, potting composts are also a risk…. Read more….

Tuesday, 25 | 04 | 2017

If you thought a cooling tower was a simple and predictable environment then take a look at this article on viruses and amoeba found in cooling towers. Read more….

Tuesday, 18 | 04 | 2017

Spanish Royal Decree 865/2003. The measures contained in this royal decree shall apply to the installations that use water in their operation, produce aerosols and are situated inside or outside buildings for collective use, industrial installations or means of transport which may be susceptible to becoming focal points for the propagation of the disease, during their operation, service tests or maintenance Read more

Tuesday, 11 | 04 | 2017

Legionella pneumophila isolates can be characterized using one of three systems: sequence based typing, serogroups or MAb subtyping (Monoclonal Antibody). Sequence typing is generally more precise, however generally serogroups are most commonly analysed for due to cost and complexity of testing.

Tuesday, 04 | 04 | 2017

Legionella pneumophila is the predominant species of Legionnaires’ disease causing bacteria in Europe however in Australasia and South-east Asia the predominant species is Legionella longbeachae. It exists in soils and can lead to Legionnaires’ disease by exposure to compost, soils and potting mixes. Within the UK most Legionella longbeachae related cases have occurred in Scotland where 6 cases were diagnosed between 2008 and 2012.

Tuesday, 28 | 03 | 2017

Recent quote from a satisfied client: “I was very satisfied with Mr Richardson. His report was detailed and he explained himself clearly in a conference with counsel... He was very knowledgeable and gave a common sense and well reasoned opinion.”…..UK Register of Expert Witnesses.

Tuesday, 21 | 03 | 2017

Managing heat exchanger cleans using the approach temperature. Using this simple technique, a cooling system heat exchanger can be checked to determine when cleaning is required. The approach temperature used in a shell and tube heat exchanger is simply…. Read more

Tuesday, 14 | 03 | 2017

Collaton Consultancy Limited announce the new appointment booking site. If you want to arrange a discussion or meeting with our staff regarding your issues then as well as phoning you can use the automated appointment booking site for your ease. Click here to access it.

Tuesday, 7 | 03 | 2017

If you find writing a written scheme is a daunting task, after all it could run to over 50 pages for a suitable and sufficient document, then let Collaton Consultancy Limited write one for you. Using the skills and knowledge acquired over many years and the draft skeleton format we can create one quickly to suit your specific needs. Email for more information and pricing.
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