On August 29, 2016 at 14:29, Ernie Gilman said...
There's an installation product that is a stiff piece of steel wire, maybe 20 gauge, that's used to drill down through a floor. You locate the wire under the floor and use its position as a reference. It's not a drill, just a piece of stiff steel wire with its end cut at an angle. It leaves a really tiny hole.
I've worked in a crawl space that was paved with concrete. It was way worse than dirt. If you get a rock under you, it sort of pushes in to the dirt. This crawl had a few rocks here and there, and a rock does NOT give when it's on concrete!
So, why wouldn't you sweep the concrete, to get rid of the stones and rocks? It might take a couple of minutes to eliminate the hours and years of frustration over the wheels stopping. The concrete floors in the crawl spaces I have worked in occasionally had wires and conduit, but I just raised the wheels to allow myself to pass over. It was really no big deal. Flat concrete is great- it's like working under a car in a garage. It takes a helluva lot more force to move a creeper on dirt, too. On sand or gravel, you would need a sled.
