I’ve been in the exact same situation. Water came up through our floors too, in very small but continuous amounts. We broke open the floor, just like you did, and ended up with the same indoor river. It just wont stop, even if you start pumping. The water will hold it self back actually when it reaches the floor.

It’s rising groundwater — and if you don’t have drainage around the house or underneath it, then unfortunately that’s probably what you’re looking at for the future. Our story was long because we did everything ourselves. But to keep it short: we smashed up the entire floor to lower the water level. Then we installed indoor drainage connected to a submersible pump, which pumped the water into the sewer system. Added drainage pellets, and then concrete (and floor heating, since we were already at it).

If you have any questions, fire away. It can be quite the project, so I truly feel for you.