I'm trying to identify the construction and drainage methods used in my basement and I'm wondering if any of contractors or building experts on the forum can correctly identify it?
I live in NJ (north near NY border) and i'm told this kind of slab is common - but is it a floating slab to allow for movement? maybe it's a french drain? trench drain? Can I tell what type of block I have? and if it's hollow and draining to this trench? and the million dollar question - Can I seal it from inside the basement in order to finish my basement?