Septic basics
How the tank and the drain field work together, which type of system you have, and what keeps it healthy.
- Septic tanks: how they work and how to keep yours healthy What a septic tank is, how the sludge, scum and effluent layers work, common tank sizes and materials, lifespan, costs at a glance, and warning signs.
- What is a septic system? A septic system is a private underground wastewater system: a tank plus a drain field. See how it works, what septic means, and how it differs from sewer.
- Septic safe products: a practical list for every room Which toilet paper, cleaners, detergents and dishwasher pods are septic safe, and what never to flush or pour down the drain, per EPA and extension advice.
- Septic tank treatment: what works and what is a waste of money Do septic tank treatments and additives work? EPA and extension research say no. See why, which ones can do harm, and what keeps a septic tank healthy.
- Types of septic systems and how to tell which one you need Compare 9 types of septic systems, from conventional and chamber to mound, aerobic, drip and sand filter, with typical costs, best uses and upkeep.