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Just figured out why my bull float was leaving those faint lines on a garage slab

Turns out the magnesium blade had a tiny, almost invisible burr along one edge from a previous job. Spent three hours yesterday trying to fix the finish before I spotted it with a flashlight. Has anyone else had a tool issue that took forever to find?
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3 Comments
angela_king39
Honestly I've had the opposite problem. My lines always came from a dirty float, not the blade itself. Took me ages to figure out I just needed to clean it better between passes.
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nina_clark
nina_clark1mo agoMost Upvoted
My old coffee maker used to leave a weird film on every cup. I cleaned the carafe constantly, but the problem was a tiny bit of old oil stuck in the grinder chute. It's always the thing you don't think to check. I see it with my car making a noise, my phone acting slow. You fix the obvious part, but the real issue is hiding somewhere else, just like that bit of mud on the blade holder.
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blakeharris
That's a good point about the float. I've found the blade can still leave lines if it's not perfectly flat against the wall. A tiny bit of dried mud on the blade holder will tilt it just enough to leave a ridge every time.
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