When the basement is water-free, proceed with inspecting, fixing, and effectively waterproofing the basement walls. The pump will discharge the water to the surface of your yard via a garden hose. Turn off the power to the basement, and then use a utility pump (with an extension cord that reaches an upstairs outlet) to get rid of the water. Working in a flooding basement increases the risk of electrical shock or electrocution. Before you do anything to repair the crack, remove all the water from the floor. DON’T make wall repairs when there’s standing water in the basement.ĭuring a rainy season, a crack in a basement wall can allow an inch or two of water in. If that is the case, the problem is easily remedied by installing a vent fan in the bathroom to direct steam outdoors. If dry, the moisture is originating elsewhere in the basement, most likely from a basement shower. If it is wet, water is seeping through the wall from the outside. Peel off the foil after 24 hours and check how the underside of the foil feels. To conduct a simple condensation test, dry an area of the wall with a rag and then attach a 1-foot square piece of aluminum foil to the wall with duct tape. If entire wall surfaces are wet, however, you’ll need to do further sleuthing. Look for streaks along cracks, at the corners of windows, between mortar joints (for cement block walls), and around pipes where they enter or exit, such as a water-supply line or a sewer pipe. DO determine where the water is coming from before learning how to waterproof basement walls.īecause concrete is porous, you can often see wet streaks that let you know where the water is coming in.
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