A septic system recently failed inspection due to water raising over the outlet pipe (previously raised) within the tank. The system is 30+ years old. During inspection, the auger holes dug over the drain field reached only 4-5 inches before water was found (state requirement/recommendations is 12-18 inches). During inspection, a camera was inserted into the pipes in the drain field which showed debris and roots- however the flow test showed the level of water in the septic tank decreased approx 1 inch after 20 minutes (showing some drainage was occurring).
Can this be remedied with hydro-jetting the drain pipes? What are the benefits of hydro-jetting? What are the risks? Can hydro-jetting prevent having to replace the failing drain field (even though there is already too much water in the field?). Please help! Thank you!