I am wondering if anyone can help me with a situation I need to correct. Last year I had a drainage system installed in my basement. The system work's great, we have had a dry basement ever since. The problem is outside. The hose that runs from the basement, runs about 15 feet out from the front of the house,under the plant bed and walkway, into the grass.It's not buried deep. The water runs out with a little pressure. The water has created a slight sink hole at the top of my lawn. My logical way of thinking has me wanting to dig a hole, fill it with gravel, top it with something, then top soil and grass seed. I would like to have the water disperse, and still maintain a nice lawn. I am not sure what materials to use to keep the water under ground?Can I grow grass on top? Or if the grass will even grow with a shallow root system? Am I on the right track? Please advise. Thanks in advance. jjbjr