Chips
5-10 mm
These chips are used as pipe bedding and percolation fine filter for drainage schemes/ pipe laying programmes/ golf/ playing pitch design. They are also used for their decorative qualities on gravel driveways, flower beds etc.
10-20:
These chips are used in precolation works and fine drainage. They are however, highly popular again for gravel driveways and landscaping flowerbeds etc;
20-39 mm:
These chips are primarily used in drainage for percolation beds/ waste water treatment systems and perform in a very efficient manner. The key here, is all drainage and percolation stone is a naturally rounded material allowing water to pass through the air spaces.