Backfill material

For correct installation of a plastic tank, gravel (usually maximum grain size 8.16) is recommended. It is very easy to work with and, in contrast to chippings and sand, does not form cavities. In addition, gravel has a high self-supporting force and can therefore be installed loosely, i. e. without additional compaction.

Click here to read the information sheet on the selection of suitable backfill material.