In 2010 our septic tank completely failed and the finger system was full of sludge. We were told that we needed to put in a filter bed that would have taken up our entire back yard. I found Aerostream on the internet and after installing it, my entire septic system was operating perfectly in less than a week. It operated continuously until we had to send it in for an overhaul in September 2020. Our "turtle" is an awesome piece of equipment and one of the best purchases we have ever made. Aerostream staff are so nice and helpful.