The Art of the Deep Clean: Mastering the Traditional Hand Wash for Lorries, Buses, and Heavy-Duty Fleets

The roof of a coach or a high-sided trailer is perhaps the most difficult area to clean, yet it is essential for preventing "black streaks" from forming on the sides later. Using long-reach poles and high-pressure lances from an elevated gantry, the wash team ensures that bird droppings and standing water are cleared away. This part of the process requires significant upper-body strength and balance, especially when managing the kickback of a high-pressure water gun at an awkward angle.