03:13PM | 03/28/13
Member Since: 03/28/13
1 lifetime posts
There is retained water under my house slab foundation (no basement). The moisture from this water caused some damage to the hardwood floor that caused me to dig up and see what the issue was. The water level is just below the waste water line and it appears to be present in the waste water line area only where the soil is relatively soft.

It is not supply water or waste water... it is most likely rain water from oversaturated lawn. Although the house is one of the highest in the subdivision, the lawn does not have a good gradient in some areas.

As a fix, I am thinking of putting french drain in the lawn. But how to remove the existing water from under the slab? Is slump pump a good option?


05:53PM | 03/29/13
Member Since: 01/24/06
1625 lifetime posts
If possible you may want to consider drainage lines with perforated pipe leading away from the building


12:13PM | 04/11/13
we have a similar problem with a concrete slab foundation in Florida. water surfaces up through the floors inside the home. through the carpet and under the tile. We discovered this when pulling up tiles on the floor. water was under the tile. we had a leak detection service come in and they did not find a leaking pipe, etc. our property is flat and the grade is flat. we live near a small lake and this area is known for issues with water intrusion. how do you waterproof the concrete slab? from the inside with a sealer? or french drains outside?


03:53PM | 06/28/14
My \town home has air moving pipes leading to vents in the floor under the concrete I have a sump pump. The sump stopped working and water filled the air pipes. A shop vac drained most of the water in the vents but 2 vents still do not blow air so water must be somewhere in the pipes but I cannot reach it. How can I find and drain the water? I also worry that it will corrode the pipes and I will lose all heat and ac. Please help


09:26PM | 06/30/14
My nephew is having a very similar problem at his house in Walnut,CA. There is water in the air intake vent that is
several feet below the slab and is filling with water. We
checked the water meter and there is no water leak in the plumbing system. The water is crystal clear and does not
appear to be coming from any drain lines in the house. We
are at a loss right now to figure this problem out.
My email is [email protected] is you want to discuss further.


10:49AM | 01/29/15
I have the same problem , we live in Orlando, Florida. We are thinking about the frend drain. Do you have more recomendaions or a company that can help me in Florida?


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