A sump is typically at the outside edge of the basement with weeping tiles draining into it. It sounds like this is a very dry area with a low water table. The hole could simply be to provide drainage in case of a basement flood.Click to see full answer. In this manner, why are there holes drilled in my basement floor?These holes effectively drain water from the CMU blocks to put less pressure on your walls and your foundation. Once the holes are drilled, water will then drain into the French drain system. From there, the water will travel through the system and into the sump pump pit where it will be discharged away from your home.Also, what is the pipe in the basement floor? Many years ago, older eavestrough downspouts used to drain through the foundation or exterior walls and empty into a short stack sticking a few feet out of the basement floor slab. These vertical pipes typically connected under the floor slab to the catch basin, which drained the water into the floor drain. Thereof, how do I fill small holes in my basement floor? Using a Chisel, Make the Crack Wider at the Bottom than the Top. Clean Out the Debris with a Stiff Fiber or Wire Brush. Fill the Crack with Patching Mix (also know as Vinyl Concrete) Address Any Pop-Outs. Wet the Surface and Apply a Concrete Bonding Agent. Pack a Small Amount of Anchoring Cement into the Hole. How do I fix a hole in my basement wall?If your walls are made of poured concrete, clean any cracks and then repair them with mortar, hydraulic cement [source: Old House Web] or polyurethane. If your walls are made of concrete blocks or the cracks are more than ½ inch (1.3 centimeters) wide, fill the cracks with epoxy mixed with sand.

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