A. If you are looking for the fastest production time for larger floors, a 3 person crew will outperform any other configuration. Your lowest labor cost comes from the highest production method. An autoscrubber is considerably faster than a single disc buffer with a wet vac and much easier on the back. It should save you 20%-40% in labor unless the areas are extremely small. Effective stripping normally requires a dual disk autoscrubber with heavy brush pressure.
But, here’s the rub. If one person does all the work, he or she will continuously be changing from one task to the next. The constant interruption of each function by stopping, laying aside the tool, picking up the next, and starting the next task is highly inefficient. Even 2 people are somewhat inefficient. The person laying the stripper, scrubbing and blading the edges, and then mopping will not be able to keep up with the autoscrubber. Every time you stop the machine, forward progress comes to a halt. If you use only 1 or 2 people to do all the work, your start and stop times will be excessive.
A three person crew is ideal, because the work progresses with little interruption. It works like this: #1 lays the stripper, #2 runs the autoscrubber with squeegee up around the edge first and then in the middle, #3 performs edge work and hand squeegees the edges, #2 makes a second pass with squeegee down (it is rare for one pass to strip 100% of the finish) and finally #1 and #3 handle the rinsing until it is time for #1 to paint out the next area. Productivity increases as each person keeps focused on one job. Time is lost when changing jobs. Working non-stop utilizes the power of momentum to synergize productivity.
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