Re: flat glass

I've been looking at this thread now and then. Seems like if it takes an
hour, then it would be just as easy and give better results to vacuum
bag, if the equipment is available. I'm imagining two or three (in case
one fails) vacuum cleaners from the thrift store, check valves, bleeder
holes to make sure they get some air, and maybe some sort of noise
control enclosure. But there is probably a better way. OTOH, if the
roller solves it, that's better. (How about two people and handles on
the ends of the roller? Or a lawn roller?