Water Temperature Testing For Legionella

The thermometer pocket at the top of the cylinder and on the return leg if fitted is a useful point for accurate.

Water temperature testing for legionella. Legionella bacteria thrives at temperatures between 20 c and 50 c so one of the key control measures for minimising the risk is to ensure that your cold water is cold i e. The water management program team should regularly monitor water quality parameters such as disinfectant and temperature levels. Hot water should be stored at 60 c at least in order to kill legionella bacteria. Because of this and because of the risks of legionella exposure it s vital that water systems are regularly tested for the bacteria.

Water testing is the only way to determine whether legionella is present in a water system. By monitoring these parameters the team can ensure that building water systems are operating in a way to minimize hazardous conditions that could encourage legionella and other waterborne pathogens to grow. If the water used in a building by accident or design sits between 20 45 degrees celsius legionella and other potentially dangerous bacteria can breed and spread through the water system. Controlling legionella using water temperature thermal control legionella bacteria thrives in temperatures between 20 c and 45 c.

Water services should be operated at temperatures that prevent legionella growth. That s why regular temperature. Hot water storage cylinders calorifiers should store water at 60 c or higher hot water should be distributed at. Learn more about ukas laboratory legionella testing how to check water temperatures hot and cold water temperatures.

This is why the hse s guidance recommends keeping hot water above 50 c 55 c in healthcare and cold water below 20 c. The prime temperature for the bacteria to proliferate at is between 20 45 degrees celsius 68 113 f.