Re: Basement flooding even after new check valve installed...
Posted by brewster on 2017/5/9 13:54:48
The sewers are ancient and leak like a sieve when the system fills to the brim because the pumps are inadequate to keep the level down. They leak into the street fill and then under your foundation. When the sewers flood the cracks in my foundation and slab squirt. Sorry I don't have better news. Water table has nothing to do with it, as soon as the sewers drop the basement flooding is over.
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