We had a dying mound septic system. I found Aero-Stream on YouTube. I seen they are for sale at Menards, but had to be ordered, couldn’t wait. Called the company, made the drive, bought the product. I was told it should take about five months to fully reverse the systems problems. About a month later things stop getting better. Five months later our septic system is working like it did thirty three years ago when it was brand new. If your system is taking all day to pump out because of bio mat issues do not hesitate and get this product.