Scrubber selection and slip risk planning for Prestons distribution centres

A wide-deck machine covers more floor per pass and is tempting on a large site, but it cannot turn in a narrow aisle and cannot reach into a pick face recess. The result is a fast clean of the open areas and a manual clean of everything else, which is usually where the soil is. A narrower machine covers less per pass and reaches more.

The right answer depends on the layout, which is why the decision belongs to the site walkthrough. Measuring the narrowest aisle and the tightest turn takes a few minutes and determines everything downstream. On some sites the answer is two machines, one for open floor and one for aisles, which is a legitimate outcome rather than an excuse. Recording the machine specification in the proposal also lets the client check that what arrives matches what was agreed for their building.

Any machine will put water and detergent on a floor. What distinguishes them is how much they pick up. Poor recovery leaves a film that dries slowly, holds soil and reduces traction, which in a building with forklift traffic is a safety concern rather than a cosmetic one. Squeegee condition and vacuum performance matter more than tank size.

The method should include a check of squeegee blades, since a worn or damaged blade is the most common cause of poor recovery and is cheap to replace. Where the floor still holds moisture after a pass, a second dry pass or a squeegee follow-up is needed. Writing that into the method prevents the floor being handed back wet under time pressure. Recording the blade check as a numbered step in the method is what makes it happen, since it is exactly the step skipped under time pressure.

The clean is not finished when the machine stops. It is finished when the floor is dry enough to carry traffic safely, and the plan should say who confirms that and how. In a facility that resumes operation immediately, that check matters, because a wet aisle handed back to a forklift is a genuine incident risk.

The practical arrangement is a nominated handback: the crew confirms the area is dry and clear, signage is removed, and the site supervisor is notified. Where an area cannot be dried within the window available, it stays closed or the work is deferred. Deciding that in advance is far better than negotiating it while a shift is waiting. Recording who performs the handback and how the site is notified is a mobilisation detail that prevents an avoidable incident later.