# Septic system type explainer

Choose the term in your approved plan or maintenance records. Compare it with EPA definitions. This tool explains records; it cannot identify buried equipment or choose a design for your property.

Use the tool on the [web page](https://septics.fyi/tools/septic-system-type). It works without JavaScript.

## How to use it

1. Choose term in your approved system records.
2. Read the result.

## How it works

Source: US EPA, Types of Septic Systems, fetched 2026-11-10: https://www.epa.gov/septic/types-septic-systems. Definitions are limited to conventional, aerobic and mound designs. EPA describes other types that this tool does not classify.

The result is selected only from the term in your records. It does not infer system type from symptoms or equipment appearance and does not decide whether a design is suitable or permitted.

Maintenance context: US EPA SepticSmart, How to Care for Your Septic System, fetched 2026-11-10: https://www.epa.gov/septic/how-care-your-septic-system. Follow the approved system and manufacturer instructions, with professional inspection.

> An explanation of published definitions only. Not engineering advice, an inspection, a design approval or a diagnosis.

## Questions

### Can the tool choose a replacement system?

No. Design requires a site assessment and the local approval process.

### Why is every result qualified?

The tool reads your selected term. It has no site observations and cannot verify your records.