"KJS" wrote in message
The poster may have been referring to a brush and roller
spinner. IMHO
they're the secret to cleaning brushes. You can extract far
more liquid than
by shaking. It also makes it possible to reuse good roller
covers pretty
much indefinitely.

When using rollers on latex, I finish cleaning them by spinning
them at high speed by grazing the surface with the jet from a
blaster nozzle on the garden hose. Sweep the jet back and forth
across the surface, spinning the roller fast, until the water
coming off is clear.

Bob