Condensation? Slab issues?


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Old 01-06-22, 10:39 PM
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Condensation? Slab issues?

Our home was built 3 years ago. I live in Minnesota and it's been -10 or so the last few days. I've noticed some moisture/standing water in our basement around where the PVC pipe runs into the concrete. This is right where the washer standpipe is. It runs up and vents out the side of the house one way and the other side goes up and comes back down into the concrete slab a few feet away. Any idea what may be causing this? Never noticed it before and not sure if it's related to the extreme cold. As you can see from the picture, this area is roughly 42" below ground.

 
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Old 01-07-22, 06:04 AM
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Lots of shadows in the picture, and your sure there isn't a leak from the pipes above or from the slab?

Would not think the temps would effect, your inside a conditioned space.
 
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Old 01-07-22, 08:53 AM
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With so much plumbing in the area my first thought is a leak. Condensation on pipes happens in hot humid months so I don't think it's condensation dripping from the pipes. The same goes for the concrete. You need a cold slab with warm humid air for water to condense on the concrete. And lastly, water may be migrating up through the concrete. Still, I'd thoroughly check the pipes in the area for a leak.
 
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Old 01-07-22, 02:07 PM
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Here is a better picture. No moisture felt anywhere on the PVC. Would it be typical for a leak to develop out of nowhere in a home that's only a few years old? Just bizarre.


 
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Old 01-07-22, 02:50 PM
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A leak can develop anytime and almost anywhere. If it's not a pipe leaking I'd suspect it's groundwater seeping through the wall/floor.
 
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Old 01-07-22, 03:10 PM
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Yea, it looks like it's from the wall or pipe joint.

Ground water is always moving, rising or falling as the conditions dictate, what ever that may be.
 
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Old 01-08-22, 11:53 AM
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Might want to check if your sump pump is working okay.

 
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Old 01-08-22, 12:11 PM
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Dry up the floor. Then wrap all the joints with paper towel or toilet paper. Put a piece of cardboard under the pipes where the floor was wet. Run some water down that drain to see if the paper towels or toilet paper gets wet. Do a regular load of clothes to test. If none of the paper gets wet then leave the cardboard a few hours and see if the bottom of it gets wet like it seeped up from the floor or seeped in from the wall. That is how I would check to see where the water is coming from.
 
 

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