Water Safety

We want to keep you safe and informed about the possible risks of contracting Legionnaire’s disease and how to prevent it.  Check out the information below:

What’s Legionella?

Legionella bacteria live in natural water systems like rivers and ponds, but people rarely catch the disease from these sources. Outbreaks of the illness can occur from exposure to legionella growing in cooling towers, evaporative condensers, hot and cold water systems and spa pools.

What’s Legionnaire’s disease?

Legionnaire’s disease is a potentially fatal form of pneumonia. It’s caused by inhaling small drops of water from contaminated sources containing legionella bacteria.

Is there any risk in KHT properties?

The risk in your water supply is minimal, but you can take simple measures to ensure you don’t contract Legionnaire’s Disease.

What can I do to prevent Legionnaire’s disease?

Going on holiday
If you go on holiday or leave your home for more than two weeks, on your return run all taps, showers and water outlets for 2 minutes to freshen your water supply.

Put shower heads in the bath and cover with a pierced carrier bag or sock and leave to run for 2 minutes.

Showerheads and hoses
Shower heads and hoses should be dismantled and descaled using a domestic descaler (bleach is OK) and rinsed every 3 months or when the shower hose/head seems blocked.

Place the shower head and hose in a container with bleach and water and let it soak for 10 minutes. Rinse the showerhead and hose and wipe off any limescale with a nail brush (or something similar). Re-assemble the shower head and hose and let the shower run for 2 minutes before use.

Taps, basins, baths etc.
If not used more than once a week, the bath, basin, and sink taps should be run for 2 minutes. The shower hose and head should be flushed through too, put a pierced carrier bag or sock over the nozzle of the tap and let it run for 2 minutes.

Please note; all external/outdoor taps should be run at least once a week if they’re not used regularly.

Any toilet that’s not used in a seven-day period should be flushed on a weekly basis or on your return to your home (close the lid to avoid contact with any water droplets).

Boilers/Immersion heaters
Don’t alter the temperature of your boiler or immersion heater. These should stay on a minimum of 60°C to ensure the boiler is working efficiently. If your hot water system isn’t heating to 60°C or you believe there’s a fault, contact us.

Ensure the thermostat on your hot water system is at 60°C, but please note, the risk of scalding from taps/showers without a Thermostatic Mixer Valve is greatly increased.

If you have a humidifier that works by producing a fine mist, use boiled water, clean the humidifier and change the water weekly.

Water sprays and garden hoses
Water in a plant spray that has been in the sun should be changed before you use it.

Completely drain garden hoses after use. It’s better not to use a sprinkler which produces a fine mist for the garden.

Do you have vulnerable family members or friends?
Do they use all the water outlets in their home every week? If not, you can help them too, by running these outlets for 2 minutes as described above.

Need further information? If you feel your home needs a risk assessment because you or another household member is in a high-risk category, please contact us:

  • k-h-t.org
  • 0151 290 7000
  • Write to – First Ark, Lakeview, Kings Business Park, Prescot, L34 1PJ

For more information:

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