| № | Part | Role | Common failure | Replace |
|---|---|---|---|---|
| 01 | Fill cap (6″) | Seals the top port. Contains a vent one-way valve. | Gasket flattens after ~5 years. | Cheap consumable |
| 02 | HDPE bottle | The actual tank. High-density polyethylene, blow-molded as one piece. | UV embrittlement or heat deformation. | Tote-level |
| 03 | Steel cage | Structural frame. Protects the bottle and provides stacking integrity. | Forklift impact. Straightens with hydraulic press. | Swap by quote |
| 04 | Pallet (wood/plastic/steel) | Forklift entry and load distribution. | Rotted stringers (wood) or cracked planks (composite). | By quote |
| 05 | Bottom valve (2″) | Primary dispensing valve, ball or butterfly. | Gasket failure; handle breakage. | By quote |
| 06 | Valve gasket (EPDM/silicone) | Seals the valve to the bottle. | Compression set; solvent swell. | Cheap consumable |
| 07 | Drain neck | The short threaded projection where the valve screws on. | Cross-threading damage. | Welding / replacement of tote |
| 08 | Label plate | Holds the UN31A cert and content-of-origin info. | UV fade. | Free reprint with ledger |
The argument in one sentence
Six of the eight parts are inexpensive consumables. The HDPE bottle is the only thing that, when it fails, forces replacement of the whole tote. Reconditioning is mostly the art of swapping the consumables before they take the bottle down with them.