The builder of our new house seeded on really rocky fill - he did not lay down any topsoil first. He did not lay seed until May and I re-seeded in June after all the rainfall we got. I have some grass growing, but coverage in not impressive at all. I am going to overseed around Labor Day. My question concerns the soil. I have raked out thousands of stones of all sizes, yet after every rainfall there are thousands more to take their place. Should I be concerned about all of the rocks and the future growth and health of the lawn? Did the builder pull a "fast one" on me by not laying any good soil, or is this something that is usually done? Thanks.