If water comes through a foundation crack, the first thing to do is to make sure that it drains properly into a floor drain and clean up the water quickly. Water in your basement can lead to odor, water moisture, and other problems. Next, check for any drainage problems outside of the house to make sure water is running away from your foundation. Finally, make sure you get a foundation repair expert out to your home to inspect the cause of the water coming through your foundation crack to protect against it occurring again in the future.