Call Professionals for Flooded Basements
Another friend of mine, not in Oregon, but up there in Washington State, had some similar problems with the basement of an older home.
This one was prone to subterranean water infiltration generally due to infrequent weather patterns.
Basement flooding is a serious pain, emergent problem you have to get to pronto. There are companies that deal with this. Which is what he did, call someone to suck out the water. They have what are essentially forceful shop vacs, but way bigger and way faster.
The good thing about hiring someone is that these guys he told me came out really fast, and were very professional as they’d done the work before.
Afterwards he installed commercial grade tile glued down directly to the slab. This wears like iron with normal traffic so its perfect for a family with kids.