The short answer
HO-3 covers sudden and accidental damage to the septic system — a fallen tree crushes the tank, a lightning strike wrecks the pump. Wear, root intrusion, drain field saturation, and lack of pumping are excluded as maintenance. Service line coverage endorsements can fill much of the gap for $50–$100/year.
Frequently asked
- Does service line coverage cover septic?
- Some endorsements yes ($10K limit typical); others only handle water and sewer lines to the street. Read the schedule.
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