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Hello again. I recently attended an online NSF Legionella Conference. Since we operate a water disinfection and purification business, as well as a surface disinfection business, we felt that it was important to attend. It’s our job to stay on top of what’s going on in both those industries so that we can be more informative to our customers.
So, what is Legionella? It’s a bacteria that can cause Legionnaires Disease. Legionnaires Disease is a serious type of pneumonia.
How would I get it? You can get it through your water, not just drinking it, it can splash and become aerosolized water. Aerosolized water is small droplets of water in the air (generally, 5 microns in diameter or less), which can contain Legionella or other bacteria and can be deeply inhaled into the lungs.
So, why am I writing about this? Because of the fear of businesses that were closed during COVID. After being shut down for extended periods, they are reopening now, and have stagnant water in their system, that is more susceptible to Legionella.
My suggestion is to always be safe. I recommend a laboratory to check your water quality, prior to reopening. Your test should include, Lead, Copper, Legionella Pneumophila, Pseudomonas, Giardia Lamblia, Escherichia Coli, Total Coliforms, Campylobacter Jejune, Hepatitis A, Salmonella and Cryptosporidium. These can all be found in stagnant water and can lead to serious health issues.
I would also check potential hydrogen (pH), and the residual of your disinfectant in the water; whether it be a chlorine, chlorine dioxide or hydrogen peroxide-based product. Consult Health Canada, EPA, World Health Organization and CDC for specific suggested levels of treatment for your water chemistry. For example, the EPA says chlorine is safe at 4 ppm (mg/L), while chlorine dioxide is 0.8 ppm (mg/L). Hydrogen peroxide has a much higher safety level because it does not produce by-products.
All of the parameters I mentioned above should be taken seriously. Be sure to flush all your lines and make sure you have a disinfectant level that is safe. Then take your sample to the lab to ensure it is free of those pesky bacteria problems. Make sure hot water tanks have appropriate heat levels (140º F). Recirculate hot water continuously if possible. Also, ensure your disinfectant residual is detectable throughout the water system. Flush low-flow plumbing with “dead legs” daily, if possible. Call a water professional if you are unsure.
You can install a 0.2-micron filter in your complete water system to ensure protection. Another piece of equipment that can help is UV light, which you can add after disinfection to ensure you are protected. If you have a well, you can shock and clean all your plumbing. In my opinion, there should be an injection pump at the beginning of your water supply regardless, so that you can either shock or maintain a continuous disinfection process. Please do not take water and disinfection lightly. COVID is not the only reason for hygiene. We should be considering the safety of ourselves, our family, employees and customers as a routine; not reactive but proactive. We also have disinfection processes that should be considered for surfaces as well. Our customers get a free evaluation and protocol, just for being a customer.
P.S. Free 50,000 sq ft worth of disinfectant “FREE” for first-time buyers of any sprayer.
Also, would it be possible to have you leave us a quick review on Google? As a small business, it’s a huge help. Here is a Link to do so, you’d just need to be logged into a Google account.
Thank you for considering us. Stay safe and stay healthy.