Sfella, the Smart Flush solution, is ready to enter the Legionella prevention market

In the Netherlands, 300 to 400 people are infected per year with the legionella bacteria (Legionnaires’ disease or Pontiac fever), a number that is rising each year. Victims of the bacteria suffer for a long period, from several months up to more than a year. Between 5 and 10% of cases are lethal.

Legionella infections mostly occur through people breathing in legionella-contaminated aerosols. Aerosols are small droplets of water that are generated, for example, when showering. For this reason, public showers like the ones in sports centres, swimming halls, and saunas, as well as truck stops and camp sites, need to be flushed regularly to prevent legionella growing in the water pipes. The required flushing is often done manually or semi-automated, which is very time consuming, prone to human errors, and labor intensive. Especially when one takes into account the legal obligations to report data like date, time, water temperature, and flush duration per shower.

The risk of legionella contamination has increased in the current Covid-19 crisis with the (temporary) closure of facilities. Showers are not used by clients and facility engineers who have to stay home and are not allowed to come to their facilities for the requisite flushing.

Sfella is the Smart Flush solution by Mioto* that addresses all of the above issues. Sfella is a user-friendly, reliable and easy-to-install solution for legionella prevention. The system is modular, for use within environments with multiple showers. It assures flushing the shower(s) happens after an operator-defined time period. The system reports the important flush data like date, time, duration, and water temperature. This reporting and control of the showers happens locally or remote via a dedicated gateway.

Sfella is powered by the mesh network MyriaNed. It is an infrastructure of nodes that connect directly, dynamically, and non-hierarchically. This allows easy configuration and scalability. Data transfer to and from the shower units (represented by a node) is wireless and bi-directional. Therefore, settings can be changed remotely, while the report with flush-related data can be received remotely in your email inbox. MyriaNed can be configured to use either 868MHz or 2.4GHz. This allows for the optimal fit in each local environment in terms of coverage and energy usage.

In February 2020, just before the first Covid-19 wave struck the Netherlands, van Mierlo Ingenieursbureau B.V. started a pilot program with Sfella on 15 showers in a care institute. The unforeseen Covid-19 crisis forced the care institute to close its sports facilities for several months, a perfect period to test the installed Sfella system. It appears the automatic flushing happened every 72 hours as programmed. Once the facilities opened again in early summer, final confirmation arrived: examinations of the water samples taken showed no legionella contamination in the related water pipes. This offered the most convincing evidence that Sfella delivered.

van Mierlo Ingenieursbureau is now to actively approaching the Dutch market and discussing with sales and distribution partners, as well as technology partners, to broaden the Sfella roadmap. If you are interested in partnering for sales and distribution, including outside the Netherlands, please contact us.

A video about Sfella is available at our website.

For further information, please reach out to info@vanmierlo.com

* Mioto is a brand of van Mierlo Ingenieursbureau B.V. in Eindhoven the Netherlands

Fulco Verheul

Responsible for marketing, sales, business development, product management and product development activities at van Mierlo Ingenieursbureau B.V.

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