Guides and resources

Data and rules

Septic Regulations by State

Permits, licensing and point-of-sale inspection rules, sourced state by state.

Septic Pumping and Inspection Cost

National cost ranges for pumping and inspection, and what drives the price.

Guides

How a Septic System Works

The two-stage process every conventional septic system uses to treat wastewater on your own property.

Septic System Types Compared: Conventional, Aerobic, Mound and More

What separates a conventional system from an aerobic treatment unit, mound system or drip distribution system, and when each is used.

How Often Should You Pump a Septic Tank?

The standard pumping interval, what changes it, and where state rules add requirements on top.

Signs Your Septic Tank Needs Pumping or Repair

The warning signs of a septic system that needs attention, and what to do if you spot one.

Septic Inspection Checklist for Home Buyers

What a pre-purchase septic inspection should cover, and what records to ask the seller for.

Buying a House With a Septic System: What to Know

What to check before you make an offer, during due diligence, and after you move in.

Septic System vs Sewer: What's the Difference?

Who's responsible for maintenance and cost on each, and why some homes are on septic in the first place.

What Can Fail a Septic Inspection

Common repairable issues versus problems that mean full replacement, using Massachusetts's Title 5 conditional-pass rules as a real example.

Common Drain Field Problems and What Causes Them

What causes a drainfield to fail, the warning signs, and how to prevent it.

Septic System Maintenance Schedule

A simple baseline schedule for inspection and pumping, plus what to keep up with in between.

What Not to Flush or Pour Down the Drain With a Septic System

The items and chemicals that clog pipes or kill the bacteria a septic tank depends on.

Septic Tank Sizing: How Big Does Your Tank Need to Be?

Why sizing is based on bedroom count rather than household size, with a real state example.

How to Hire a Septic Company

What to check before you hire, what to ask for in a quote, and red flags to watch for.

Septic System Installation Cost

What drives the price of a new septic system, and why a real quote depends on your specific site.

Emergency Septic Service: What Counts as an Emergency

Which septic problems need a same-day callout, and what to do while you wait for help.