House repairs...

[Maxx42]

If you live that close to a flood zone area, I would advise against penetrating through the cement floor of your basement right away. If the water is running through the ground it could be running under your house as well. The weight of your house might force water up into the basement when you punch through the concrete. It probably won't rush in, but it will come in nonstop all of the time and making any kind of water tight seal after the fact could be very tricky.