hello;I had a $6000 septic system installed almost 3 years ago. I notice a wet spot this past winter. I have always had problems with the toilet flushing and odors coming into the washing room area from almost day 1. It disappeared one day and havent worried about it since this past winter, with this wet spot. Anyway the installer, state plumbing inspector and the guy who drew up the plans with the infiltrator person dug up several areas. I was told that even though the installer used fine sand, insteaad of the course gravely sand it called for, that this was not my problem??? I had greasy white film all though my infiltrators and this was the problem, at my cost!! I just spent $6000.00 not even 3 years ago on this. They say that I need to pump out the tank, as it is full. They discovered a very very slow drop coming into the tank, maybe from the toilet? This never allowed the system to dry out and relieve itself. I must find the leak and fix it. I am so overwelmed with this whole thing. Does anyone have any advised on what to do. My water usage is 233 gallons average, the system design is for 270 gallons per day. Please help…