Greywater recycling for your single-family home

The availability of funding in this area can change constantly. However, as the topic of water treatment and reuse is becoming more and more prominent, it is worth asking your local authority, city or district.

We are currently only aware of one grant for greywater use in the federal state of Bremen.

The treated grey water has an excellent water quality.

The special treatment process with a membrane bioreactor, which includes both biodegradation and ultrafiltration with a pore size of 0.02 µm, reliably retains bacteria and viruses. In this way, the systems deliver top quality that meets the highest standards. You can find more information on this topic here.

A permit for the installation of a grey water recycling system is not required. However, we recommend that you inform yourself in advance about the points to be observed.

Please note! Before installing a grey water recycling system, you must notify your municipality or city.

Due to the small number of system components, maintenance costs are kept to a minimum.

The membrane can be cleaned mechanically and chemically.
Detailed maintenance instructions can be found in the document "AL-GW300 grey water recycling system" under the instructions/data sheets tab for the core products under Downloads. Maintenance instructions for other products can be found here.

The combination of rainwater and greywater recycling is generally possible. The rainwater already has service water quality from the ground up and is not treated again. The treated grey water is added to the rainwater.

Do you have any further questions on this topic? Then simply contact us.

We specify a service life of at least 10 years for the ultrafiltration membrane, which already minimizes the costs considerably.

All replacement intervals for the membrane, filter or tank can be found here.

You can decide on the positioning of your graywater system in your home as you wish and are able. The system can be installed in the utility room on the first floor, in the basement or as a ground installation variant. However, there are a few technical parameters to consider. We will be happy to help you with this.

A greywater system requires a separate pipe network on the wastewater and supply side.

1. Waste water pipes (grey water that is discharged into the bioreactor):
   A separate line from the bathtub, shower and hand wash basin.
2. Supply pipe (process water)
   A separate pipe to WCs, washing machine and garden.

Unfortunately, the regulations vary from municipality to municipality. Please speak to your local authority, municipality or city.