Tree Pits By Surebond Surfaces Ltd. These tree pits were carried out for Nottingham City Council as a replacement for uneven cast iron grids that had become a trip hazard and a collection area for cigarette butts and debris. The “Surebond Tree Pit System” is free from trip hazards, will not collect rubbish & debris and will allow all rain water to pass through its porous irrigating surface.

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