Stormin Mormon wrote:
Need something, one or two galons. That I can pump up and
rinse dust out of equipment. Compressed air doesn't clean
well enough. Gotta be water. The garden sprayers from the
store are the right idea. But, the new ones with the plastic
wand just don't have the flow.

Years ago, I used a kiddy toy fire extinguisher, and that
worked reasonably well. But, it's only about 20 ounces, and
only lasts for one quick squirt.

Best I've found have been the Roundup sprayers, with the
brass wand and pump top. A pressurized water fire
extinguisher would do a nice job, but would look a bit
strange.

I use a pump-up herbicide sprayer to clean the cracks, then a sponge to
flush a surface.

The nozzle of a sprayer is designed for the flow of herbicide you might
want to apply from ten feet. If I wanted a bigger flow I'd drill the
nozzle.