Legionellae

By means of a specific control and regulation of the warm water flows in the system, a severe cool-down of the water temperature as well as times of stagnation shall be avoided.

• Hydraulic adjustment of the circulation systems. A continuous circulation is required.
• Recirculation of the contents in the warm water storage tank in such a way that the total water volume has the required temperature of 60 °C.
• Regular cleaning of the warm water storage tank.
• Reduction of the storage volume.
• Disused pipes have to be dismantled in order to avoid stagnant water.
• Expansion vessels must be flown through.
• Inspection of the pipes regarding insulation.
• Basic disinfection (chemical disinfection by means of chlorine or H2O2) of the complete piping system in case of high contamination with legionellae (removal of biofilms and deposits).