They had to build my yard up quite a bit when they put in my pool and it seems that I have very little topsoil, then clay on top of gravel around my pool. I have put approx 140 pounds of ky bluegrass seed down and it takes off after a few weeks only to die after 10 -15 days. I'm assuming it's due to the pool soil and the fact that the water drains right down thru the dirt to the rocks. Can anyone recommend a grass that will grow on tough clay soil? I live in the country so I don't have much landscaping, pretty plain so I'm not so concerned with curb appeal but I do need something other than wet muddy clay!!!