we have a crawl space under our house and we have had it drained but as soon as they stopped pumping out the water it started running back in as fast as it went out. this causes a strong odor in the house. at first we thought there was cats under there dead but found out not. the smell will come up strong in the kitchen sink when the water is running. the smell is all through the house and is so embarrassing when people come to visit. we also think it may be making us have bad headaches and sick at our stomachs at times.. please help us we don't know where to turn next.