These solids are like smoke in the wind. No matter what kind of filter you have, TSS will slip right through.

Maybe since the first sample was only a few months after the tank had been pumped explains the clean sample. Even though the tank was murky with visible solids the sample was clear and remained so for weeks. If I add a 300 gal. tank for aeration only I was thinking of a light weight single chamber tank that I could install myself. http://www.plastic-mart.com/product/1032/300-gallon-plastic-septic-pump-tank-41319 A bigger dual chamber tank would be better, but I've got limited room and at 125 lbs. I can handle this one myself, with a small excavator. After the tank settles down I'll see if the effluent clears back up. The aeration I'm already doing in the cleanouts (http://curezone.com/upload/_S_Forums/Septic/clean_out.jpg) may be adequate to keep the leach field happy. In the summer three of the five lines were completely dry. Even before I added air to the tank, odor was only a problem where air was first being introduced. The cleanout at the other end of the first line was anaerobic odor free as were all subsequent cleanouts. I am disappointed the aeration in the tank did not work because having the air introduced as early as possible was helpful at speeding up the breakdown of the waste, and reducing odors. Before I aerated the tank, air was first introduced at a turning structure (http://curezone.org/ig/i.asp?i=71768) just before the first leach line. If that lid and the tank lids were not secured tight there were odors. Soon after I added air to the tank odor was not an issue. It would be nice if someone could figure out a way to do it.