Grey water - out of the grey water area at last

• Re-use water and save money

Re-using water in the home clearly helps to lower ever-increasing water and sewage costs. Good-quality water is often not available in large enough quantities.

• Enjoy having more water in periods of water shortages

Grey water recycling plants process used domestic grey water - i.e. water from showers, baths, basins - so that it is suitable for ? ushing toilets, cleaning purposes and watering the garden. When hosepipe bans are imposed - as is already the case in some European countries - grey water recycling systems are a blessing. Blossoming instead of wilting ? owers, green not brown lawns, relaxation instead of exasperation. The combination of grey water and rainwater use hugely increases the availability of good quality water.

• Grey water recycling systems

Produce high-quality service water and are gaining in importance alongside rainwater harvesting systems.

• What is grey water?

Grey water is residential wastewater that is free of faeces and highly contaminated kitchen wastewater. This means the water discharged from baths and showers, washstands and even washing machines. In a water-saving household, these items generate about 55 litres of grey water per person a day.

• What is service water?

Any grey water generated is processed and turned into service water. Service water is hygienically safe water can be used to operate household and industrial gadgets that use water but do not need water suitable for use as drinking water.

• Grey water is an inexhaustible resource

Every household generates nearly the same quantities of grey water every day and - unlike run-off from the roof (rainwater) - no matter what the weather. It is slightly polluted, largely free of faeces, fats and solid particles with only slight bacterial contamination. Its heat can often be captured and made use of.

• Processed grey water can be used as service water for

Flushing toilets - irrigation - cleaning purposes

• Design of a grey water recycling system

Grey water recycling systems need a separate grid connection to collect grey water as well as one to distribute the service water.

• Savings potential

The particular advantage of recycling grey water is that the amount of grey water generated by the average household permanently corresponds to the service water required. The two-fold use made of this water reduces residential drinking water consumption and the amount of wastewater generated by approx. 30%.

• Areas of application for grey water recycling systems

Detached houses, multiple dwellings, hotels, residential accommodation facilities, swimming pools and saunas