[Big Al]

This might be a really silly question, but why do scrubber/polisher machines have clockwise and anti clockwise turning?

[Andrew Briscoe]

If you are using a bristled brush, and it only turned in one direction
the bristles would eventually flatten, and become less productive.
Alternating the turn will reduce this happening, keeping the bristles more upright.

Andrew

[Big Al]

Cool cheers mate