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My friend Chris works at BC Granite where they make stone countertops. This is how they manage slurry (ground stone mud). They hose down muddy surfaces into floor drains that collect in a sump where clear water can run off into the sewer system, and pump the slurry up to the big metal funnel on the top. Here it settles more, water is separated, and thicker mud is dumped occasionally through a valve into the canvas bag below. Yet more water separates, and when the bag is full, they forklift it out to a huge dumpster for delivery to the landfill!

I thought I made slurry-in-a-hurry at home with my tire grinder, but they have a 100x larger problem. At home I let the slurry dry completely in trays before bagging and trashing it, but at BC they can't afford to do that, they just condense and "mail it to the landfill" still soggy.

0504A_BC_GraniteSlurryRig.jpg (394 Kb) (under photos/16/Random/)

By Alan Silverstein, ajs@frii.com (page updated Sun Mar 9 14:33:54 MDT 2025)