I have a customer that insists he needs to put in some kind of drainage solution because his neighbor waters twice a day. (newer sod, 100 degree weather) The side of his yard is damp, which I can understand, but there is good slope and no real reason to do anything in my opinion. Just to wait until the guy with the new sod doesn't have to water as frequently. He wants to do something though and is willing to pay for it. Everything I can think of would help but wouldn't provide enough of a solution to make it worth wild. Such as putting in a french drain, or putting in a series of drains following the property line. Does anyone have any good ideas?