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-   -   2'x2' Hole in basement floor, sewer line access? (http://www.houserepairtalk.com/f32/2x2-hole-basement-floor-sewer-line-access-15254/)

mhamel 12-22-2012 10:36 AM

2'x2' Hole in basement floor, sewer line access?
 
2 Attachment(s)

So we've been in our new home for a few months now (built in 1950), and I've found that there is a 2'x2' hole in our basement floor, it was under a small pallet that neither we, nor our inspector looked under.

My first guess was that this was cut to access the sewer line, but then I noticed that there appears to be a concrete patch running the length of that wall, so maybe it's drainage related? The concrete floor only appears to be a couple of inches thick, and there is a rotting wood frame around the edge of the hole. Upon visual inspection I don't see brick or tile in the hole.

During our home inspection, we found slightly elevated radon levels, so we've been thinking about adding a radon reduction system, but now I'm thinking this is probably the culprit. I thought covering it with plastic might be the best bet--I'm thinking access to these pipes probably isn't a terrible thing. At the same time I want to make sure I don't create a situation that causes the pipes to deteriorate.

Anyone have any insights as to what this could be, or what I should do about it? I found the thread below that shares some similarities, but I want to be sure.
http://www.houserepairtalk.com/f32/square-foot-hole-basement-floor-14786/


mhamel 12-22-2012 10:36 AM

2'x2' Hole in basement floor, sewer line access?
 
2 Attachment(s)

So we've been in our new home for a few months now (built in 1950), and I've found that there is a 2'x2' hole in our basement floor, it was under a small pallet that neither we, nor our inspector looked under.

My first guess was that this was cut to access the sewer line, but then I noticed that there appears to be a concrete patch running the length of that wall, so maybe it's drainage related? The concrete floor only appears to be a couple of inches thick, and there is a rotting wood frame around the edge of the hole. Upon visual inspection I don't see brick or tile in the hole.

During our home inspection, we found slightly elevated radon levels, so we've been thinking about adding a radon reduction system, but now I'm thinking this is probably the culprit. I thought covering it with plastic might be the best bet--I'm thinking access to these pipes probably isn't a terrible thing. At the same time I want to make sure I don't create a situation that causes the pipes to deteriorate.

Anyone have any insights as to what this could be, or what I should do about it? I found the thread below that shares some similarities, but I want to be sure.
http://www.houserepairtalk.com/f32/square-foot-hole-basement-floor-14786/


mhamel 12-22-2012 04:40 PM

3 Attachment(s)

Well I dug around a bit, and the perpendicular pipe does appear to be capped-off. I've also taken a couple of better shots of this possible check valve.

I've attached a drawing of my basement layout, as you said, I assume that the other side of the Y does go to the sewer stack, but that's on the other side of the basement-- so I still have no idea why the concrete appears to have been patched.


mhamel 12-22-2012 04:40 PM

3 Attachment(s)

Well I dug around a bit, and the perpendicular pipe does appear to be capped-off. I've also taken a couple of better shots of this possible check valve.

I've attached a drawing of my basement layout, as you said, I assume that the other side of the Y does go to the sewer stack, but that's on the other side of the basement-- so I still have no idea why the concrete appears to have been patched.


mhamel 12-22-2012 04:40 PM

3 Attachment(s)

Well I dug around a bit, and the perpendicular pipe does appear to be capped-off. I've also taken a couple of better shots of this possible check valve.

I've attached a drawing of my basement layout, as you said, I assume that the other side of the Y does go to the sewer stack, but that's on the other side of the basement-- so I still have no idea why the concrete appears to have been patched.



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