I recently bought a house and for the first month+, there was absolutely no water in the basement. All of a sudden one day, I go downstairs and there are puddles! I look and see that the water is coming from the seam between the floor and the foundation wall, but also through the floor in some places.
The funny thing is, I have a sump pump and the pit has THREE corrugated pipes going into it. They are all spilling out water constantly and this water is being pumped out. It seems like (if I reach my hand in through the pipes) they go along the walls. This leads me to believe I have a french drain system installed in the basement.
The question is, even though there is water coming out of these pipes, why am I still getting a flooding basement? And why in the world would it occur so suddenly like this?
Maybe the pipes clogged up? Any help or thoughts would be greatly appreciated!
I found out that the french drain system I had was not done properly. Namely, they did not drill holes in each and every void in the concrete block foundation (they actually didn't drill any holes at all!). Furthermore, they raised the entire floor 8 or so inches. So in other words, the french drain is located on the original basement floor, then there is a whole new floor poured over top of that. Thus, the water this system was draining was simply the seepage water going through the wall at the original basement floor level. This amount of water drainage was not sufficient which led to the flooding (puddles).
It was completely impractical to remove the entire basement floor (what a crazy solution this was from the previous owner!). Thus, I had the french drain job redone by a reputable water proofing company. They jackhammered the edged of the basement, removed the old drainage pipe, drilled holes in every block void, put new pipe down and poured new concrete to cover the drains. Cost about $8,000. I have had zero problems since. We have had some serious rains in these few years and it has remained dry as a bone down there ever since. Thus, this story proves that not all french drains are created equal!!!