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re: Slab leak detection - plumber recommendation?

Posted on 7/23/23 at 4:16 pm to
Posted by weadjust
Member since Aug 2012
15199 posts
Posted on 7/23/23 at 4:16 pm to
quote:

Most of the time, the FLIR is picking up cooler areas around cracks in the slab.


You may not have a leak and your moisture is coming in through the cracks. Clean the floor up real good and tape some plastic sheeting over that area of the floor. Make sure you have a tight seal with the tape and floor around the perimeter of the plastic sheeting. Watch it a few days and see if you get any condensation on the plastic sheeting.
Posted by jamiegla1
Member since Aug 2016
7028 posts
Posted on 7/23/23 at 6:42 pm to
Think a calcium chloride test is in order? I kind of think the same thing. But I’d like to ID the source.

My plan is to use one of those diamabrushes on the whole house and epoxy where the new “wood” will go (LVP). I’m going to tile the bathrooms and laundry. I just don’t want water getting between the epoxy and LVP from some other source
Posted by LSU82BILL
Fort Lauderdale, FL
Member since Sep 2006
10340 posts
Posted on 7/25/23 at 1:52 pm to
quote:

You may not have a leak and your moisture is coming in through the cracks.


This would be my guess. Generally, when a sanitary line leaks, it is due to channel rot. The pipe becomes clogged with soil beneath the slab and you will have slow drains and backups. If a supply line leaks, water will fill the sleeve and come up through the slab inside the walls where that section of the loop goes down int and comes back out of the slab.
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