We live in a townhouse and the one next door is somewhat higher than ours. Previous owners there installed a BIG pool and didn't do anything much about drainage from their fairly large brick patio.
We had drainage (not really ground water) coming into our dining room numerous times onto carpet. My husband bought Vulkem and other stuff and sealed that wall with it - at the base -------between the 2X4 and the wall.........on the slab. Never leaked again.
But, now the water is coming in over the slab in the kitchen - under cabinets,dishwasher, etc. What a mess every time it rains.
I don't think it's groundwater as such because this morning we barely had a half inch of rain, if that, and here comes the water over the slab into the kitchen.
My husband thinks a french drain outside might cure it. Maybe for ground water.......but - to me -this is just drainage from the patio next door. Not all that much rain at all this morning. Gone now. Heavy, heavy rains and one thinks groundwater --- but a very light one.........to me that's drainage. The next door owner is not a good neighbor and wouldn't do a thing --- so we have to solve the problem from our side.
I'm thinking - take out the parts in the kitchen -- shelves, etc. and do the same that was done in the dining room. Do the whole wall on that side.
Anyone had experience with this --- in an attached townhouse or whatever? Please --- some good ideas. Thanks.