The Different Types of Septic Systems and Which One Is Right for You

Low-Pressure Dosing Systems

Low-pressure dosing systems are a variation of the standard gravity system, but are designed for properties that don’t drain as well or that don’t have the space for a wide drainfield. These systems use a pump to distribute effluent evenly across the drainfield in timed doses. This allows for smaller or more irregularly shaped leach fields. LPD systems still include a septic tank, but they require a second chamber or pump tank. That adds to the installation cost and complexity. They also use electricity, so they're more vulnerable during outages. Homeowners with LPDs need to stay on top of maintenance. Timers, floats, and pumps can fail if neglected. A consistent septic service schedule is important. That includes routine septic cleaning and tank inspections. When done properly, LPD systems perform well in challenging soil conditions and can be a smart choice where gravity systems are not allowed.

Aerobic Treatment Units

Aerobic Treatment Units are the closest thing to a miniature wastewater treatment plant. These systems use oxygen to break down solids faster and more thoroughly than a standard tank. Wastewater goes through multiple treatment chambers, sometimes including filters and disinfection steps, before it reaches the drainfield or drip irrigation system. The biggest advantage of an ATU is water quality. The treated effluent is much cleaner than what comes out of a conventional tank. That makes it a preferred option in environmentally sensitive areas or lots with very shallow or restrictive soils. But that performance comes at a cost. ATUs require electricity and frequent maintenance. Mechanical parts like blowers, motors, and control panels need attention. You’ll need a service contract with a septic company that knows how to work on these systems. Septic tank pumping is still required, but you’ll also need more frequent inspections and part replacements. If you’re willing to commit to the extra upkeep, an ATU can open up building options on land that would otherwise be unusable for a septic system.

Mound and Drip Systems

In some cases, the soil just won’t cooperate. Whether it’s too shallow, too rocky, or sits above a high water table, there are still solutions. Mound systems and drip irrigation systems are two engineered options that work where other systems can’t. Mound systems use layers of sand, gravel, and soil above ground to create an artificial drainfield. Effluent is pumped up into the mound and slowly filters through. These systems need regular monitoring, and the visible mound can be a downside for some homeowners. Drip systems deliver wastewater through tubing buried just below the surface. It’s released slowly through emitters, much like a garden drip irrigation setup. These are normally paired with ATUs for extra filtration. Drip systems are precise, efficient, and highly engineered, but they’re also expensive to install and require detailed planning and monitoring. Both options require ongoing septic service and maintenance. Septic cleaning alone won’t cover the needs of these systems. You’ll also need to maintain filters, flush lines, and monitor pump performance.

What to Consider Before You Decide

Choosing a septic system requires thinking about your budget, the land, local regulations, your household size, and how involved you’re willing to be in system upkeep. Here are some questions to ask:

• What kind of soil do you have?
• How close is the water table?
• Does your county have restrictions or approvals required for certain systems?
• Is the property large enough for a traditional drainfield?
• Are you prepared to handle the technical maintenance of an ATU or drip system?

Before installation, you’ll need a soil evaluation and permit from your local health department. The type of system you choose also affects how often you’ll need septic tank pumping in Rolesville. Some systems need it every three to five years. Others may require more frequent septic cleaning to prevent failure or contamination.

Are You Looking for a Reliable Septic Company?

If you’re still deciding which septic system is best for your land, call Septic Pumping of Raleigh. We offer full-service care, including installations, septic pumping, septic tank cleaning, and inspections. Whether you’re leaning toward a conventional setup or exploring alternative systems, it helps to work with a team that knows the soil, the regulations, and the technology. Call today to schedule a consultation or inspection. We’ll walk you through your options and give you a plan that works for your site and your budget.