My BIL is trying to get into their place with a 4" pump to at least get the water out and keep up with the water coming in.
Just a note of caution. Some basements will cave if they are pumped dry while the surrounding ground is saturated. Hydralic pressure can be pretty high. Block walls would worry me the most.
Because of where I live, I have specially reinforced poured concrete walls so I basically float the place.
Anyway, just a word of caution. Caved basements are worse that flooded basements - by far. Dangerous too
