I was skeptical at first, but then I called Aero-Stream. They are group of people who want to help you solve a problem, not just sell you something. Their business is rooted in Engineering and Science. I installed the aerator my-self with Aero-Stream's guidance. In the end, my septic is leaching again and my septic service told me I can now go on a 2 year schedule (I was on a 6 month schedule).