Anybody have experience with Flood Guard one-way valve for floordrains?
Just to clarify, it's a drain at the bottom of the outside steps to
the basement, not a sewer drain (the water just goes into the ground,
or comes from the ground).
I know it's a water-table issue since other things at the same level,
such as neighbors' yards, flood in extreme rainstorms.
I'll try installing the one-way valve. Thanks,
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