Making the most of your Water Butt
Collecting rainwater with a water butt is a great way to save water, reduce your bills, and help the environment. With a few simple steps, you can keep your water butt safe and your garden thriving.
Here are our tips for safe use and reduced exposure to Legionella bacteria:
Keep it clean – Give it a good clean every few months (or at least once a year). Use gloves and a face mask to help keep you safe while cleaning.
Cover up – Use a tight-fitting lid and a mesh filter to stop leaves, insects, and debris from getting in.
Stay cool – Keep your water butt in the shade if possible. Cooler water helps reduce bacteria growth.
Check your gutters – Clean them regularly to stop leaves and dirt building up.


Use watering cans – They’re safer and more water-efficient than spray hoses, which can create mists you might breathe in.
Mind the temperature – If water is above 20°C, let it cool before using it on your plants.
Supervise children – Always keep little ones safe around stored water.
Make sure you avoid these mistakes:
- Leaving the water butt uncovered
- Letting algae or dirt build up inside.
- Using hoses or water butts that sit in full sun.
- Creating fine water sprays you might inhale.
- Make sure you wash your hands after use.
Water butt water should not be used for drinking, bathing, or indoor cleaning.