Water entering through electrical conduit.

I noticed recently some wetness around the opening in the basement where the electricity enters our two-family in Bushwick. I am not sure yet whether this is a new issue, or even whether this only occurs when it rains, or is a constant light drip (ground water). Our front yard on top of the issue is solid concrete. Is this an issue that requires ConEd consultation, an electrician, or is it something that can be sealed by myself? Any advice is appreciated. [IMG_5748](//muut.com/u/brownstoner/s1/:brownstoner:9IFq:img_5748.jpg.jpg)

michaelsaur67

in General Discussion 5 years and 11 months ago

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oliver_nyc | 5 years and 11 months ago

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i had this exact issue and despite con ed plugging both ends of the conduit (street and in my box) water kept seeping into the basement wall and making its way into our basement. ultimately i concluded the conduit probably had holes (these things are pretty rusted up) somewhere in the run from the manhole to our foundation wall and rainwater/groundwater was still getting in. i ended up getting con ed to come and inject an expanding foam into the conduit as far back as the foundation wall (which meant they needed an extra long nozzle to get the foam about 2 feet into the conduit so the pipe was sealed around the cables all throughout the foundation wall.) if you have access to the conduit pipe (as it looks you do) you can just clean out any sealer that’s in there (usually okum or cement) and then inject the expanding foam yourself. the product that con ed used to use is called “american polywater FST-250”. i’m attaching a diagram i used to show con-ed. [Image1](//muut.com/u/brownstoner/s2/:brownstoner:RVw4:image1.jpeg.jpg)

yudashasom | 5 years and 11 months ago

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It’s not uncommon that the conduit leaks, especially when the manhole is full of water.

When Con Ed does service work, they spray a sealant foam on both ends. But I don’t know if you would be able to get them to come out just for that.