The latest news from Waterline:

A weird water behavior that intrigued Da Vinci finally has an explanation

In the 16th century, Leonardo da Vinci first described a fascinating phenomenon involving water that later became known as the hydraulic jump. And a mere five centuries later, scientists have finally explained why it happens.   LINK

Public Health England Legionella data: June 2018

Monthly Legionella Report June 2018   National Surveillance Scheme for Legionnaires’ disease in Residents of England and Wales     LINK (PDF)  

Laboratory surveillance of Pseudomonas spp. and Stenotrophomonas spp. bacteraemia in England, Wales and Northern Ireland: 2017

Pseudomonas spp. bacteraemia rates increased by 26.6% between 2013 and 2017, see the full document:   LINK  

Release of 2018 Model Aquatic Health Code (MAHC)

Government agencies and the aquatics sector can use the MAHC to reduce risk for outbreaks, drowning, and pool-chemical injuries at public pools and hot tubs/spas at apartment complexes, hotels, and waterparks.   LINK

ISSUED FOR PUBLIC COMMENT – BS 8580-1 Water quality. Risk assessments for Legionella control Code of practice

BS 8580-1 – This document has now been issued for public comment until 3rd September.   LINK

Women in Microbiology

Tales of Extraordinary Female Scientists Many girls want to become scientists when they grow up, just like many boys do. But for these girls, the struggle to do what they love and to be treated with respect has been much harder because of the discrimination and bias in our society. In Women in Microbiology, we… Read more »

BUPA fined £3m after death of elderly resident

A care provider has been fined following the death of a resident at an Essex nursing home after he contracted Legionnaires’ disease.   READ MORE

Legionnaires’ disease monthly surveillance reports: 2018

Legionnaires’ disease monthly surveillance reports: 2018   LINK

RR1118 – Legionella control in evaporative cooling systems: underlying causes of breaches in health and safety compliance

Evaporative cooling systems, such as cooling towers and evaporative condensers, are susceptible to colonisation by Legionella bacteria. Previous evidence has demonstrated that they can be responsible for sporadic outbreaks of infection, ranging in scale both in terms of numbers infected and severity. When outbreaks occur, they frequently infect members of the public rather than workers… Read more »

Legionnaires’ disease monthly surveillance reports: 2018

Legionnaires’ disease monthly surveillance reports: 2018   LINK

Product Spotlight

MC1+ Protector

Formulated to prevent wear and tear and the resulting debris, MC1+ stops magnetite and other deposits forming. As it does this, it protects the central heating, keeping the boiler working efficiently and helping to ensure the system lasts for longer.

MM2050 - PT100 Thermometer

Four/three/two wire measurement, Max/min functions, Hold function, Dual display, °C/°F/°A selectable, Simultaneous display of real time and max/min/hold measurement, Self calibrating.

MD610 Photometer

The MD610 gives you a mobile device in a modern design with the analytical features of a laboratory photometer. All important water analysis parameters from A(luminium) to Z(inc) are covered. Combined with the high precision of Lovibond® reagents, a reliable and quick analysis of water samples is guaranteed. Reagent tablets, powder reagents, liquid reagents, or cuvette tests are used depending on the method.

Armitage Shanks Markwik 21


(TB H2a) an integral thermostatic bib mixer tap, single long lever mixer. Single flow fixed horizontal nozzle, sequential operation. Sequential operation ensures both hot and cold supply are purged on each use, long lever gives precise control. Insulated technology keeps the ‘hot’ side of the mixer at a safe surface temperature.

AS Shower chrome

AS Shower chrome

Legionnaires‘ disease is usually spread by the breathing in of water vapour containing Legionella bacteria which is then deposited on the lungs. The bacteria thrives in water temperatures between 25 and 45°C and so showers by their very nature create an ideal environment for the bacteria to spread. The AS SHOWER chrome filter provides reliable and immediate protection against Legionella, removing bacteria at the point of use, allowing users to shower safely.