In regards to Aero-Stream, the product, the company and all of the help I was given from my very first communication, I say thumbs up to a first rate company. The system delivers all that is advertised, the people who answer the phones are real, (no robots)and very informative,the delivery of product was very fast,right on time actually. In only a little over two weeks I am seeing dramatic results in my septic system. Not only does it smell a whole lot better, it is working much closer to normal. No more slow drains or flushes,no more back ups and the water level in my tank remains right where it should be. Hats off to Karl Holt for a truly great product and for his American company and all of his professional help. It was a wonderful experience, money well spent!