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The radon pipe should be tightly sealed through the basement floor. If that gap you identified goes though the floor, then it should be sealed up because the system is supposed to vent radon from the soil. That opening would prevent that from happening and if you had a lot of rain, you could get water rising up through that gap. Wait until the basement ...


Block walls are not waterproof, in fact solid concrete ones are not all that waterproof either. The way to prevent what you're seeing has 3 components: Prevent water from infiltrating the soil next to the foundation wall Provide a positive drain for any water that does make it into the soil near the wall. Seal the wall from the outside so that water has a ...

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