Water and wastewater services for Kent, Sussex, Hampshire and the Isle of Wight
Your water

Find out how to save water, energy and money and learn a bit about your water supply

Your area

Find out if Southern Water supplies your home, check your water quality or explore what's happening in your area.

How hard is your water?

The hardness of water depends on the amount of naturally occuring minerals such as calcium and magnesium. Use our postcode checker below to find out the hardness of your water.

To find out about water in your area, please enter your postcode below:

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