Central preparation moves some work from branches but adds dispatch, goods receipt and empty-container returns. Savings are not automatic; compare a pilot with measured performance in the current setup.

In the pilot record lot and branch codes, preparation labour, dispatch and receipt times, branch waits and empty returns. Define product segregation and acceptance steps under the site's approved procedure.

For fleet sizing, count containers at the central site, in transit, at branches and in washing separately. Use actual cycle time and busiest dispatch days to locate shortages; keep sizes distinct and calculate ownership cost from recorded expenses.