Posted By Stephen J W Clegg.
Fellow Safety folk, I have been asked if there is a risk of legionella when using the above piece of equipment.

The unit is emptied and cleaned regularly, serviced and maintained (as per manufacturer’s instructions).

The unit is filled up daily with tap water. I know the optimum breeding temperatures fall between 20oC and 45oC-50oC, I have checked L8 and other sources of reliable information regarding reducing the risk and other measures are in place.

My understanding is that below 20oC the likelihood that breeding will take place is reduced but still possible – and above 50oC the chances are reduced but again still possible.

If the water intended to be used were boiled the night before, left to cool overnight (in a safe place and in a suitable container) then poured into the unit first thing in the morning, would this further reduce the risk (using boiled water). There is still the chance that when cooling the water it might become contaminated but this would apply to any water left overnight and due to the timescales involved would be remote?

Any useful comments are welcome.

Thanks in advance.

Steve.

Posted By Stephen J W Clegg.
Paul, this was my original suggestion, the manager wanted the risks relating to using tap water ruled out.

Thanks for that.

Posted By Stephen J W Clegg.
Thanks for that guys!