The Matrix infiltration boxes ensure the infiltration of rainwater into the ground. Infiltration of rainwater is the process of rainwater which ends up in the soil and not in the sewer system. The matrix infiltration box must be buried in the ground and connected to the drainpipe of your house or garage. The rainwater is temporarily stored in the matrix box after which it can gradually infiltrate into the soil. GEP recommends that a leaf filter and a sand trap be connected to the matrix infiltration box. See here an example of leaf and sand catchers. This can prevent the geotextile from becoming polluted. The Matrix infiltration Halfbox has a volume of 62 liters and has a high compressive strength, is open on all sides and can be expanded in all directions. The Matrix infiltration box can be delivered as loose sheet material, after which the Matrix infiltration box can be assembled on location. No air is then transported so that transport costs are kept low. We also call that sustainable business!