Purchased a unit in 2019 after being told my system had failed and was indeed overflowing on a regular basis. The leach field just wouldn't drain anymore. The septic company quoted $12K for a new system. Everyone said I was crazy for buying this product and honestly I was very skeptical. After install of the Aero-Stream unit, it took about 3 mos of use to see a difference. Shortly after, the system was back to draining as expected. No more odor and no more back-flow. It's been about 2 years since I've had the system pumped and the last time they came out, the technician commented that it was like pumping water vs septic. It's rare that a product does what it says. Additionally, the support you get through the remediation process is unlike anything I've ever experienced. You call anytime and get advice. One happy customer!