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re: Mildew smell coming from floor outlet

Posted on 11/16/23 at 12:24 am to
Posted by jamiegla1
Member since Aug 2016
7632 posts
Posted on 11/16/23 at 12:24 am to
quote:

Unless a moisture barrier wasn’t installed under the box and it’s seeping up through the slab. Idk. I’m throwing shite at the wall at this point.

this sucks, man. I currently have no floors in my house. I pulled up all of my wood, carpet, and tile and ground it down to bare concrete. My floors were rotting due to some unknown source of water.

Ive been looking for this water source for months. I think I know about where it's coming from but there could be several ways it's getting there. I hope you dont end up with this problem

one thing to consider. Do any of your downspouts drain very close to your house? DO you have French drains that may be plugged? Ive found that moisture barriers, if even installed, dont last.
Posted by Not Cooper
Member since Jun 2015
4948 posts
Posted on 11/16/23 at 10:22 am to
quote:

I currently have no floors in my house. I pulled up all of my wood, carpet, and tile and ground it down to bare concrete.

This looks like the next step. Builder stepped away today and said they are going to put together a plan to rip flooring up and find water source. Likely will be after thanksgiving.
Posted by jamiegla1
Member since Aug 2016
7632 posts
Posted on 11/16/23 at 1:18 pm to
man oh man. what a pain. hopefully its easy to find. mine has not been
Posted by Not Cooper
Member since Jun 2015
4948 posts
Posted on 11/16/23 at 2:18 pm to
quote:

man oh man. what a pain. hopefully its easy to find. mine has not been

Are you still living in your house? They’ve talked about busting up concrete around the outlet. Assuming I won’t be living in my house if that ends up happening.
Posted by jamiegla1
Member since Aug 2016
7632 posts
Posted on 11/16/23 at 4:00 pm to
I lived in it the whole time and removed the floors myself. I had American Leak Detection, a plumber, an insurance adjuster, and a civil engineer come look at it. Nobody could tell me where the water was coming from. I decided to take it in my own hands.

As far as busting up around the outlet, I’d go buy a moisture meter from Home Depot and move it all around your floor. Do it in an area across the house. See if you’re reading more than 15% anywhere. The reason I say to do this is bc you may find that it’s coming from a crack in the slab and not the conduit. If you see big areas of moisture or a pattern, busting up the receptacle could be pointless
Posted by Not Cooper
Member since Jun 2015
4948 posts
Posted on 11/16/23 at 5:22 pm to
quote:

As far as busting up around the outlet, I’d go buy a moisture meter from Home Depot and move it all around your floor. Do it in an area across the house

The builder had one and ran it all around the living room and never hit more than 15 except right at the outlet. May be worth my while to get my own and go around the whole house though
Posted by baldona
Florida
Member since Feb 2016
22516 posts
Posted on 11/16/23 at 6:54 pm to
I’m not sure how the conduit is run but I’m assuming it goes from the floor outlet to in between your studs in the wall by the outlet it’s connect to?

I’m not sure why you couldn’t cut a hole in your drywall where the conduit is and blow/ suck all the moisture out. Or take a shop vac and suck it out at the outlet. To see if there’s water sitting in there?

Hell if it’s way down in the outlet you could just spray foam the top part of the conduit and keep the smell below it.
Posted by jamiegla1
Member since Aug 2016
7632 posts
Posted on 11/16/23 at 7:01 pm to
quote:

Hell if it’s way down in the outlet you could just spray foam the top part of the conduit and keep the smell below it.

id probably do this before disturbing the vapor barrier by busting up the slab.

They make moisture activated polyurethane kits that you can pump in the area youre trying to stop leaks. I would pump it all the way through until it came out the other side. Plug that bastard up eternally
Posted by Not Cooper
Member since Jun 2015
4948 posts
Posted on 11/17/23 at 3:37 pm to
quote:

hey make moisture activated polyurethane kits that you can pump in the area youre trying to stop leaks. I would pump it all the way through until it came out the other side. Plug that bastard up eternally

I’ve thought about plugging the hole, my concern is if moisture was coming out there, and I plug that hole up, where’s it going to go next?
Posted by gerald65
Moss Bluff, LA
Member since Jul 2020
710 posts
Posted on 11/18/23 at 1:22 am to
Just a thought. I wonder what you might find if you did some kind of "smoke" test in this conduit? Pump in some smoke and see if you can find where the smoke comes out?

OR... blow in some kind of "scented" stuff to see where it come out.

What is the elevation of the yard compared to the house slab? Maybe now that there has been a little rain, water might be getting under the slab and into a broken spot in the conduit.
Posted by ItzMe1972
Member since Dec 2013
11557 posts
Posted on 11/18/23 at 9:19 am to
There's hope.

We had a similar problem where the outlet smoked and arched from all the moisture.

We ripped up all the oak parkay and then had the concrete around the floor outlet removed. I can't remember exactly, but they sealed it and we never had a problem again.

Our insurance company payed for the repair and new flooring.
Posted by Not Cooper
Member since Jun 2015
4948 posts
Posted on 11/20/23 at 9:56 am to
quote:

We ripped up all the oak parkay and then had the concrete around the floor outlet removed. I can't remember exactly, but they sealed it and we never had a problem again. Our insurance company payed for the repair and new flooring.

I am lucky that this has been a documented issue since the week we closed on the house, so the builder is going to handle any costs to repair. I am concerned though, since they told me they were going to rip my floors up last week they haven’t responded to any communication.
Posted by baldona
Florida
Member since Feb 2016
22516 posts
Posted on 11/20/23 at 3:16 pm to
If your builder is going to do it, they should be able to cut a hole in the drywall where the outlet wire is ran through the conduit. Pull the conduit, and flush the pipe.

Chances are you have ground water in the conduit IMO from the conduit being underground and not waterproofed. Water getting into conduit is extremely common and not an immediate issue. Ive never heard of mildew/ mold but that makes sense.

Drywall is an easy repair. I'm not sure why they wouldn't work on that before re running the conduit completely. That seems crazy. Even with the builder doing it which will be a PITA as he isn't making money and will drag his feet, I wouldn't want to have a hole in my living room for 2-3 weeks.
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