We had a leak in the foundation with all this rain and want to now divert the downspout near the crack further away from the house ( at the recommendation of the crack leak fixer). The problem is that the downspout now comes down to an area that is about 4 feet level and then drops down to a steep downslope of about another 6 feet...so steep the riding mower can't be used there with out falling off. The concrete guy said to get some 4 inch round tubing? from a store and divert the downspout from the gutter into the ground about 4-5 feet away from where it currently is. Pretty easy so far. Now my wife says to get the tube with slits in it so the water leaks out of it slowly along the slope but the other guy didn't say anything about that. They sell both so I am not sure which to get. I thought the one with slits would just put the water back in the ground close to the house.