I rerouted my sump pump plumbing using pvc, check valve, and after cleaning out a bucket of dirt/sand from the bottom of the sump pit, I found this. I’m not sure b/c my current CI waste pipe runs from the house, along the side basement wall to the backyard, but the sewer/street is at the other end of the house. Back in the 60s it was converted to public sewer.
When water ends up in here, it doesn’t drain out, so I think it’s been plugged, or filled in with sand, I can stick a screwdrive all the way into it. The hole is 2 feet deep, and has a concrete bottom. My current fantasy is to someday dig out the basement to about as deep as the bottom of this pit, so I’m curious about what’s down there.
PJ
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It looks to me like a typical sump pit. I don't know why you would think anybody would have pollaced a septic in the bottom of the house...
There is sign of water trickling in at the corner, indicating that you have water just below your slab, so you want to keep that in mind if you ever try to dig that basement deeper, have the water plan in place first.
The drian of what you have is probably silted in but still working in some mionimal fashion or it would be full of water.
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OK, so you think the CI pipe flange that you can see was just part of the sump drain? House was built in the 20s, maybe before they had sump pumps?
The slab is actually very thin, maybe an inch, and cracked in many places so it's kind of damp, but water isn't a problem except in some holes in the slab, even during major floods. If a new slab was ever done, it would be done the right way.
PJ
Do think that.But it is even a faint possibility that the CI was ther to allow water to perc UP into the well so a pump could eject it elsewhere.Thin slab indicates this was intende just as a rat slab/mudslab to keep it dry enough to walk on without sinking in mud.
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Maybe part of the french drain?