/21.9./ Chemical disinfection – do not use hot water on 21.9.! /14.-17.9./ Hot water supply will be interrupted due to preventive measures against Legionella

Posted 15.9.2026

Dear Residents,
On 21 September, the hot water supply at Blanice Dormitory will be interrupted from 8:00 a.m. until approximately 12:00 p.m. due to chemical disinfection of the hot water system. After the supply is restored around 12:00 p.m., hot water will be available again; however, it will not be safe or suitable for any use until approximately midnight (24:00).

Until then, please do not use it for showering, washing, cooking, or any other purpose.

Thank you for your understanding and cooperation.
SÚZ/FMD  VŠE

Posted 11.9.

Posted 21.8.

Dear Residents,
Due to ongoing thermal disinfection in the hot water system at the Blanice dormitory, the hot water temperature has been set to 70°C.
Danger of scalding!!!  This temperature will be set until 24.8.2026 at 12.00.
Increased attention, especially when showering and using hot water!!!

Posted 20.8.

Dear Residents,

The Public Health Authority of the City of Prague
has detected Legionella in one riser of the domestic hot water system at the Blanice dormitory.

For this reason:

1. It is prohibited to use hot water from the Blanice dormitory water system for consumption or cooking.
2. Limit showering and avoid inhaling water aerosol produced during showering.

The situation is being handled by a specialized company through chemical disinfection, chlorination, and cleaning of the water system.
Thermal disinfection will be carried out by raising the temperature to approximately 70 °C (be aware of the risk of scalding).
The exact date of the thermal disinfection will be announced in due course.