I know that it is hard to diagnosis problems through the internet, but our knowledge of our septic is slim and we need a bit of knowledge for a leg up. Our drainage field is leaking in to the yard where it exits the tank. We know that there are a few problems: 1. We know the tank needs to be pumped and are having that done today. Last done 4 years ago when we bought the house. We did get a lecture about not pumping our tank enough. We do think that a little ridiculous to say that this is the whole problem since both sets of our parents have lived in lived in their homes forever and they have had their tanks pumped a combined total of 1 time and have never had problems. 2. We know that our septic system isn't deep. The tank is maybe 6" deep and the spot were it is leaking is maybe 1' deep. This is thanks to the genius that owned the house previously who thought he would try to level off the massive hillside our house is on. He told us that he had to stop because he hit the septic. 3. We removed a tree a couple years back right where it is know leaking. Since then we have always had greener, lusher grass then the rest of our yard. We are not stupid about what we put down our drains. we had been putting septic treatment in for the last 3 years, now we know that this may have not been the best thing. We were told (after they asked what we did for a living, in which my husband said he was an engineer) that we would need a whole new drainage field. Obviously, we would like to not do that. We were also told that it needs to be in a completely new spot, which is difficult to do because of the wooded hill side we live on. Any suggestions? Yes we are getting a second, third, fourth opinion from others not concerned about how much money we make.