Signs of a septic tank problem that are detectable inside the home include slow-draining sinks and toilets, gurgling sounds in the plumbing, constant plumbing backups and strong sewage odors. Outside indicators include standing water, swampy grass or lush vegetation growth over any part of the system.
An additional septic problem sign is bacteria that shows up in well water during annual inspections. Failure inside of the septic system is typically caused by a blockage from undissolved solids. Additional common problems outside of the system occur in the absorption field from crushed or broken pipes and tree roots. When a symptom appears, it is usually too late for small, affordable repairs to solve the problem. Preventative maintenance and system pumping is the best method to avoid a big repair bill.