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I would be looking at getting some self leveling mortar/ concrete mix and at the very least, filling in those voids. Your sub floor needs to be securely fastened to the concrete floor which means it will "sink" in where the voids are and that will show when the new wood floor is installed. If you avoid fastening the sub floor into the voids hoping to just go ...


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Vacuum, then get a scraper like this and run it along the floor as if you were scraping out the mud The idea is not to scrape off every bit of stuff, since he's going to put cement board on top, +/- 1mm thick mud puddles don't matter. But check if the blade bumps into something, like a bit of mud forming a bump. But the most important is to check there are ...


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I probably would fill the low areas to prevent trip hazards but also probably would not put anything down other than indoor/outdoor carpet a power outage or another pump failure and then any new material other than designed for wet dry will hold more water even with a proper slope . So yes fill the low spots , but reconsider any type of structure that ...


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How old is the house? This sounds like an old house given a 1-2" deep puddle and painted concrete. You should consider that : - the slab is probably too thin - inadequate drain rock under the slab - no insulation under slab - lack of radon / vapor barrier under slab - the exterior perimeter drain may be clogged - sewer service pipes in slab may be ...


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