Re: Basement flooding even after new check valve installed...
Posted by brewster on 2017/5/13 12:28:03
If you have more than 153" of water column, you can see your own sh.. regardless your check-valve situation.
If you have a basement of 4' depth, a 153" water column would put the sewer level more than 8' above the street. I'm pretty sure that's not the case. You don't understand the physics.
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