how to drain water from under a house
If it turns out that there is a lot of water under the house, then consideration must be given to improving the drainage around the perimeter. A simple investigation can often determine where the water is coming from. Water can drain into a sub area from planter areas next to a house, or low points in the landscaping. Walk around the outside of your house and see if you can spot where the low points might be. If most of the water is under the rear of the house, there is probable a low point at the rear yard.