Last reviewed: 13 November 2026

Tool hire depots receive equipment in widely varying condition. A returned generator may have a loose fuel cap; a digger may drip hydraulic oil; another machine might arrive with a coolant or battery fault. The challenge is to identify the liquid before it is moved through the workshop or left on an open yard.

Create a dedicated returns inspection point

Use a stable, preferably covered inspection area away from open drains. Check fuel tanks, hydraulic lines, seals, filters and the underside of each item before release for cleaning or servicing. Keep damaged equipment immobilised until the leak source is understood and repairs can be arranged.

At recurring low-volume leak points, suitable drip trays can protect the floor. Outdoor storage needs additional precautions for rainwater, unsecured containers and run-off. Where practicable, separate equipment awaiting repair from items ready for hire.

Match materials to the returned machine

Known oil and diesel drips may suit oil-only absorbents. Coolants, detergents and other aqueous fluids need a different compatibility check. If fluids may have mixed or the liquid cannot be identified, do not choose an absorbent by colour or habit: review records and obtain competent advice first.

  • Keep accessible spill kits and drain covers near returns and refuelling areas.
  • Provide a safe procedure for draining and transferring waste fluids.
  • Label waste containers and segregate incompatible materials.
  • Control pedestrian routes while surfaces are wet.
  • Document recurring failures by equipment model or maintenance history.

Prevent environmental harm and repeat damage

Never hose leaking fuel or oil from the yard into surface-water drainage. Collect contaminated wash water through an appropriate system, and consider whether environmental permissions apply. For English sites, the Environment Agency pollution-prevention guidance for businesses in England offers a useful starting point.

A depot’s best spill-control result is a repaired machine and a safer returns procedure. A well-stocked kit supports that work, but should not become a substitute for servicing, bunding or responsible waste management.