1. Strict Safety Precautions & Preparation
- Work in a well‑ventilated area; keep all ignition sources, open flames, and sparks far away.
- Mandatory PPE: safety glasses and protective gloves.
- Essential tools: hand pump for drainage, buckets for sludge, and a long‑handled brush for scrubbing.
2. Draining the Tank & Accessing the Interior
- Use a hand pump to extract diesel into an approved, dedicated container.
- Detach any connections to the engine or fuel pump after draining.
- Gently swirl the empty tank to dislodge loose debris and sediment.
3. Scrubbing, Flushing & Chemical Cleaning
- Use a tank cleaning brush or flexible tool to remove residue, sludge, and dregs.
- Apply a specialized cleaning solution or hot water with detergent to dissolve contaminants.
- Agitate vigorously, then drain completely into a separate container.
4. Thorough Rinsing & Complete Drying
- Rinse thoroughly with clean water to remove cleaning agents and suspended dirt.
- Air dry in a well‑ventilated space for at least 30 minutes, or use a hot air gun.
- Inspect interior with a light before reassembly to confirm it is spotless.