The latest news from Waterline:

Reopening a pool after Covid-19 shutdown (TN45)

These instructions assume that you have shut your pool in accordance with one of PWTAG’s two alternative recommended procedures (PWTAG technical note 43). Read the full article here

CDC, EPA Change Building Reopening Guidance After Acknowledging Error

Agencies admit incorrect guidance in documents intended to protect people from a deadly waterborne disease. Read the full article here

Businesses set to reopen warned to be wary of Legionella bacteria in water

Businesses planning on reopening in the coming weeks are being urged to follow guidance to prevent the spread of Legionnaires disease, which develops in water systems. Read the full article here


Coronavirus: Businesses told to flush out water supply before reopening to avoid potentially deadly Legionella bacteria

Dental practices, hairdressers, offices, gyms and hotels should take action to avoid spreading the Legionella bacteria, says PHE. Read the full article here

Japanese pub aims to clean up with disinfectant spray machine

TOKYO (Reuters) – As Japan’s restaurants and bars slowly open up from a coronavirus lockdown, many are looking to reassure the public that dining out is safe again and one Japanese-style izakaya pub thinks it has found the perfect solution. Read the full article here

Medics warn of Legionnaires’ Disease outbreak due to high number of water systems lying idle

THE HSE’S HEALTH Protection Surveillance Centre (HPSC) today urged people to be aware of Legionnaires’ Disease, which can be caused due to bacteria growth in appliances which have been left untouched due to the Covid-19 pandemic. Read the full article here

Wandering a Grand Hotel Emptied by Coronavirus, and Checking 1,400 Taps

A luxury hotel in Barcelona plans to welcome guests again once Spain’s lockdown ends. Until then, its sole occupant lives in a room with enviable views and preps it for a post-pandemic world. Read the full article here

‘Deadly’ Consequences If Stagnant Water in Shuttered Buildings Is Not Properly Addressed

Plumbing experts say that a united effort is required to educate building owners about the potential health risks in their water systems. Read the full article here

Legionella risks during the coronavirus outbreak

Employers, the self-employed and people in control of premises, such as landlords, have a duty to identify and control risks associated with legionella. Read the full article here

Warning of increased risk of Legionnaires’ disease in Somerset after lockdown

Shut down water systems could be harbouring dangerous bacteria. A Somerset council is warning of a ‘heightened risk’ of Legionnaires’ disease after lockdown ends. Legionnaires’ disease, which is a type of pneumonia, can be caught if you breathe in tiny droplets of water containing bacteria that cause the infection. Read the full article here

Product Spotlight

PrimeLab Photometer

The PrimeLab photometer hand-held Bluetooth® device is expandable and portable, developed for ultimate flexibility for use in a range of water systems. With only one light source and the JENCOLOR multi-spectral sensor used exclusively in the PrimeLab, it is possible to measure all water parameters where the water sample is visibly discoloured after addition of a reagent. Key Features of PrimeLab Photometer: The first and only PrimeLab photometer with just 1 LED / 1 JENCOLOR sensor, covering the 400 wavelength (380nm-780nm). More than a 100 different parameters available. Activation of add-on parameters is possible even after purchase. Powerful PC-software and app with free cloud service. Creating reports and dosage recommendations by just a click, using your individual water treatment chemicals.

HuwaSan TR50 Silver Stabilised Hydrogen Peroxide

HuwaSan TR50 is a commercial water disinfectant and biocide designed for shock disinfection or constant dosing. HuwaSan TR50 kills legionella bacteria and in addition removes biofilm. It is safer to use than chlorine as the disinfection breakdown products are oxygen and water. Independent testing shows that HuwaSan TR50 provides a very wide spectrum of biocidal activity against bacteria, viruses, spores, fungi, amoebae (such as amoeba acanthus which can act as a host to legionella bacteria) and algae. Use disinfectants safely. Always read the label and product information before use.

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.