A septic system's lifespan typically ranges from 15 to 40 years, with a common average of 20 to 30 years. The longevity heavily depends on the tank's material, maintenance diligence, and usage habits. With proper care, lifespans can reach the upper end of this range.
Lifespan by Tank Material:
Concrete: 20 to 40 years
Plastic or Fiberglass: 30 to 40 years
Steel: 15 to 20 years
To maximize your system's lifespan, follow these maintenance best practices:
Regular Pumping and Inspections: Have the tank pumped every three to five years and schedule professional inspections regularly.
Mindful Usage: Only flush human waste and toilet paper. Avoid putting items like cat litter, paper towels, cigarette butts, fats, grease, oils, or coffee grounds down your drains.
Avoid Chemicals: Do not pour harsh chemicals into the system.
Water Conservation: Reduce the amount of wastewater your system has to process.
Protect the Drain Field: Avoid driving or building heavy structures over the drain field area.
Modern septic tanks have two lids: one that covers the inlet where wastewater flows into the tank and one that covers the outlet where the treated water flows out to the drain field. However, older septic tanks installed before 1975 may have only one lid. Because septic tanks last 20 to 40 years, if yours only has one lid, it may be time for a replacement.
You maintain a cesspool by pumping the tank every three to five years to prevent clogging. You should also have a septic tank or sewer system professional inspect the system once every three years. Avoid putting harmful chemicals and non-biodegradable items in the system to extend the life span of the cesspool.
To prevent drain clogs, perform regular maintenance and cleaning. Avoid disposing of substances like grease or coffee grounds down the sink. Additionally, installing and routinely using drain strainers can help catch debris and prevent blockages from forming.
Before you hire a septic repair pro, make sure you get three written quotes from local companies to help you evaluate qualified candidates. Ask each company to provide proof of licensure and insurance. Finally, when you decide to hire a specific pro or company, ask for a written contract that sets out all the essential terms, including specific work expectations, a timeline, what permits are needed, who is responsible for obtaining permits, and clear payment details, including due dates.
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