GRAF UK Ltd
 
Tel. +44 1608 661-500
Fax +44 1295 211333
info@grafuk.co.uk
www.graf-water.co.uk
Regen House, Beaumont Road
Banbury, Oxfordshire, UK-OX16 1RH

Backfill material

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.

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