Dwr Cymru Welsh Water

Reclaimed Water

There are other ways to use water in a household or business, that doesn’t come from our drinking water supply, and that’s using reclaimed water.

Reclaimed water has been previously used in some way, but is stored and then reused. This could include rainwater harvesting collected from roofs, or systems which reuse wash water from the bathroom or kitchen (grey water treatment). Depending on how much the reclaimed water is treated, it could be used for things like watering the garden, through to toilet flushing, use in washing machines, car washing, irrigation etc.

In the UK, reclaimed water systems are becoming more common. It’s a form of recycling and can be useful in reducing the water we need to supply you which could save you money, and also look after the environment. However, mixing of reclaimed water with the drinking water supply, could affect the water quality and could be harmful to health. The regulations allow us to check how such systems are installed.

If you are thinking about getting a reclaimed water system you should also think about:

  • Compliance with the regulations.
  • Is it cost effective?
  • How much water will you need, and what do you want to use it for?
  • Do you have enough room for the installation, and will it need any protection (e.g. from frost, agriculture or vermin)?
  • Maintenance requirements.

More detailed information can be found at:

Aa