Frequently Asked Questions

Get answers to common septic system questions from the experts at I-5 Septic Services.

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General Questions

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A septic system treats wastewater on-site. Wastewater flows from your home into the septic tank, where solids settle to the bottom (sludge) and oils float to the top (scum). Bacteria break down some of this waste. The liquid (effluent) flows out to the drain field, where it percolates through soil that naturally filters and treats it before reaching groundwater.

Signs you have a septic system include: no monthly sewer bill, your neighbors have septic systems, your property records mention a septic system, you can locate a septic tank lid in your yard, or you live in a rural area without municipal sewer service. You can also check with your local health department for records.

With proper maintenance, a well-designed septic system can last 25-30 years or more. The tank itself (concrete or plastic) can last even longer. Drain fields typically last 15-25 years. Regular pumping, avoiding harsh chemicals, and proper water usage are key to maximizing lifespan.

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