I have an old anerobic system that has a back up tank with a sprinkler system attached to the back up tank. Prior to installing the Aerostream product my back up tank was constantly filling up and sprinklers were going. This told me that my drain line (leech field line) was not working well due to some sort of blockage (biomat build up). I installed the Aerostream product just under 4 months ago (January 2019) and as of today my back up tank is completely dry and sprinklers have not come on. This is the first time in 4 years that my back up tank has been dry. I highly recommend any of the Aerostream products. They truly are an American company that are all about helping people.