Domestic wastewater from showers, washing up and personal washing is purified by the soil using a sand filter or infiltration system. The 1 m³ infiltratioin package is intended for cleaning the grey water produced by one family. The infiltration plant can complement a sand filter using a 2 x 15 m collection pipe pack.
If space is limited, an infiltration module solution can be selected instead of a traditional field. Such a solution only requires around 10 m². Infiltration modules made from mesh pipes replace the infiltration field's distribution layer while purifying wastewater more effectively than a traditional layer of macadam.
When the purification field is higher than the septic tank or if the height difference is not sufficient for gravity sewerage, an Uponor pump chamber can be added to the system if required. The pump chamber is located after the septic tank. Grey water septic tanks generally need to be emptied once every two years at holiday homes and once every year at permanent residences.
A single-family leaching field for all wastewater consists of a 2 m³ septic tank, a divider drain and an absorption or filtration field. Larger septic tanks and fields can be used to build Infiltration systems for two or three families.
On small plots, the purification field can be built using absorption modules, which require less space. Infiltration modules made from mesh pipes replace the infiltration field's distribution layer while purifying wastewater more effectively than a traditional layer of macadam.
Additional phosphor removal can be obtained using a separate phosphor removal chamber, which is installed between the septic tank and the leaching field. The septic tank is ordinarily emptied twice annually.