Greywater breaks down much more rapidly than conventional sewage and has 1/10 the nitrogen. Therefore, separated greywater and toilet waste is recommended to make the groundwater impact almost neglectable.

Greywater is bath- dish and wash water. You should ask the community you live in what their rules and regulations are for treating and discharging the effluent.

A simple and very effective greywater treatment filter, with a replacable filter media is coming from Finland and is called Eco-Matic Willa in stainless steel (pict to the right). It can be used in both vacation and year around installations. The filter material in Eco-Matic Willa shall be replaced one or more times per year depending on use, preferebly according to service and maintenance agreement with a local contractor..

The most effective final treatment takes place in the top layer of the soil where roots, soil bacteria and earth worms can finish the treatment. In situations like in the swedish archipelago where the islands almost completely lack soil for infiltration, a planter bed can be constructed and double as the final greywater treatment.

 

For further information go to http://www.greywater.com