I purchased Aero-Stream in March 2010 for my marsh front house. The system was installed by my plumber who followed the written instructions and conversed with the Aero-Stream support staff by phone. The septic tank and drain fields significantly improved within 2 weeks. The Aero-Stream system has kept our very old septic tank and drainfields trouble free until the recent 2012 tropical storm rains. Currently,a stiff white foam continuously exudes around the septic tank lid. However, support for Aero-Stream is easy by phone call or email.I confidently report that Mr. Karl Holt will solve this current problem.