Most homeowners associate septic systems with the traditional model that involves delivering waste to a tank, where it is then separated. The effluent is then pushed into the drainfield. However, another option exists for those who can’t install the conventional model. Here’s what you should know about how the standard system and the less common aerobic system differ.

Standard Septic Systems

Standard systems are anaerobic, which means that the tank contains bacteria that doesn’t depend on oxygen to remain alive. If your home is equipped with this model, waste simply exits the property via a main pipe and travels to the tank. 

In the tank, it’s separated into three distinct layers: liquids at the top, solid matter at the bottom, and wastewater, or effluent, that moves from the center to an exit pipe. From there, it travels to a series of small pipes in the drainfield. These pipes have holes that guide the wastewater to filter through them and into the surrounding soil.

Conventional systems require a specific type of land for successful installation. If it’s situated too close to a body of water, the water table may be too high, which could cause sewage to back up into the drainfield. The ground must also slope slightly to accommodate the waste treatment process.

Aerobic Septic Systems

Unlike standard systems, aerobic systems require oxygen to treat waste. The system is more complex than the conventional model because it contains more parts, as well as electrical elements. The process begins when liquids and solids are separated in a single tank, much like they are in a standard system. Then, the liquid travels to an aerobic tank, which is where the waste is treated and disinfected. From there, it travels to the pump tank. This tank features a pump that delivers the treated wastewater via a sprinkler head system or drip pies on the surrounding lawn.  

To determine if this style is right for your property, your septic service will perform a percolation test to determine the rate at which the soil absorbs water. If it’s not sufficient, then the conventional model will likely not work and an aerobic model may be your only choice.

Homeowners throughout New Haven County, CT, and surrounding areas trust in the team at Sanitrol Septic Services for all of their septic system needs. Serving the community since 1984, the company offers a wide range of services, including clogged pipe cleaning, septic tank pumping, and general inspections. Visit the website to learn more about how they can help you, or call (203) 315-3202 to schedule a free same-day estimate.