

With proper care, a septic system can last 25–30 years or more.
Yes, but limit usage and avoid flushing large amounts of solids, as this can increase pumping frequency.
Avoid wipes, diapers, feminine products, grease, chemicals, and medications.
Routine maintenance is typically not covered, but damage caused by unexpected failure may be. Check your policy for details.
Yes, invasive roots can clog or break pipes. Plant only shallow-rooted vegetation near the drain field.