I was told I have a septic bed instead of a septic field. It is 20' x 30' and the grass has aleays been very green over it, however, it is never wet, mushy, or smelly. I only have problems when I put a lot of water through the system. The system is 23 yrs. old and has been pumped twice. Local pump guy told me system failed, I believe this is false. I think your product will work, I have good sandy soil. If not I plan to make a new field myself.