The PP Devabox should be placed completely level on a 100% stable surface. The pipes to and from the rainwater filter should be connected at the right incline. The filter can be elevated using a pipe with a diameter of 400. The filter housing and elevation pipe should
be filled and compressed step by step. Filling and compressing should be carried out using only pure filler sand. The cover on the 400 pipe should have free access from the 310 diameter. The cover should rest
on the surface around the filter and certainly never on the filter case. Ideally, the cover should be placed on a concrete rim, so that loads (from traffic) are not applied to the filter case.
N.B.: the outflow to the rain tank can be turned 180° by also turning the filter mesh 180°.