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Things to Do Against the Risk of Legionella in Hotels, Factories and Similar Facilities

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  • Things to Do Against the Risk of Legionella in Hotels, Factories and Similar Facilities

Legionella bacteria poses a great risk especially for hotels, factories, etc., where cooling towers and ventilation systems are used. Bu riskin en aza indirilmesi için yapılması gereken belli başlı işlemler şunlardır:

First of all, a staff trained in Legionella and able to identify risks should be employed at the facility. Hot water tanks must have discharge taps at a suitable point. Thus, it should be possible to empty, clean and remove the bottom sediment with all of the hot water tanks at regular intervals.

Hot water tanks should be emptied, cleaned and disinfected every 3 months in order to reduce the sludge residue on the bottom. The frequency of this process may vary depending on the rate of sediment accumulation.

Cold water tanks should also be emptied, cleaned and disinfected at least once a year. If a hot water tank or part of the hot water system has been out of service for a week or more, the temperature of the water must be above 70°C for at least one day from the time it is put back into use.

The temperature of the hot water flowing from the faucets or shower heads at almost every point of the building should reach a temperature of 50-60 C within 1 minute.

The temperature of the hot water tanks should be kept at least 60C throughout the year. The temperature of the hot water returning to the hot water tanks should be at least 50C.

Shower heads and faucet filters cause sediment accumulation and should be avoided or descaling agents should be used at regular intervals (on average once a month).

Cooling towers should be emptied and cleaned when not in use. Cooling towers in use should be mechanically cleaned 4 times a year, sediment and sediment should be completely removed, and appropriate biocides should be used regularly to prevent the growth of organisms.

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