Entries by tagonline

Finally – New Technologies to Effectively Measure and Control Legionella in Cooling Towers

ASHRAE’s Standard 188, “Legionellosis: Risk Management for Building Water Systems” codifies a systematic process to assess and control the risk of Legionella pneumophila in evaporative comfort-cooling water systems. This systematic process specifies a framework of consistent action, assessment and re-assessment of the effectiveness of water treatment, routine monitoring, preventative maintenance, and water quality during service and […]

New Risks for Commercial Building Managers as Covid-19 Restrictions Ease

Office buildings, “non-essential” stores and malls, some restaurants, university campuses, hotels – there is a long list of buildings that have been idled or had extremely low occupancy for the last month or more. As state governors begin the process to gradually restart the economy and ease restrictions, there are new risks – risks that […]

You shouldn’t be worried about Covid-19 in your cooling tower. Here’s why.

What’s the risk of the Covid-19 virus – or other viruses – from being present in the water in my cooling tower? Here’s why I think that the risk is very low. Viruses – especially SARS-type viruses like Covid-19 – are very uncommon in potable and surface waters. In the U. S., the quality of […]

Four things that you should know if you must test your cooling water for Legionella Bacteria, Part 2

This blogpost will review the fourth thing that you should know – how to choose one of the currently-commercialized laboratory and/or field tests for legionella bacteria. The previous blogpost reviewed the first three things that you should know if you must test your water for legionella bacteria. Monitoring for Legionella pneumophila requires determining the optimal […]