When delving into the septic installation industry in North Carolina, it's essential to comprehend the different grade levels that define the scope and capacity of a septic installer. Each level corresponds to specific system types, demands various hours of continuing education, and some require exams. Here's a comprehensive guide:

1. Limited - Level 1

This is the basic level, but as the name suggests, its scope is quite limited. Consequently, it's often not the go-to choice for many in the industry. Here's what you should know about this level:

• System Type: Limited to a single septic tank conventional (gravel) gravity system only.

• Education Requirement: After attending the 18-Hour Certification School, an additional 6 hours of continuing education training is required.

• Examination: No exam required.

2. Standard - Level 2 (Most Popular)

This grade level is the most popular and widely embraced by NC installers since it encapsulates over 90% of the systems set up in the state.

• System Type: Covers any approved gravity or single pump dispersal system not specified in Grade Level III or IV. This includes multiple tanks, grease traps, single pump or single siphon, fill systems, and sand-lined trench.

• Education Requirement: After the initial 18-Hour Certification School, a 6-hour continuing education training is essential.

• Examination: No exam required.

3. Intermediate - Level 3

While this level provides broader capacities than Level 2, it has the same exam as Grade Level IV. Hence, most installers either opt for Grade II due to its popularity or Grade IV for an unlimited license.

• System Types: It encompasses everything in Grade I and II, along with dual pumps or dual siphons, systems up to 3000GPD, low-pressure dispersal, flow equalization, and any system that requires ground water lowering with a pump.

• Education Requirement: Post the 18-Hour Certification School, a 9-hour continuing education training is demanded.

• Examination: Exam required.

4. Unlimited - Level 4

This is the pinnacle level, providing an all-encompassing license that caters to all subsurface wastewater system types.

• System Types: This level includes >3000GPD systems, multiple off-site systems, industrial process wastewater, drip dispersal systems, wastewater reuse systems, and advanced treatment systems.

• Education Requirement: After the 18-Hour Certification School, it demands two additional days of continuing education. Additionally, a 12-hour continuing education training post-certification school is necessary.

• Examination: Exam required.

In Summary: Choosing the right grade level depends on an individual's goals and how they envision their journey in the septic installation industry. While starting with Level 1 might seem the natural progression, its limitations can be a deterrent. On the other hand, Level 2 is most common, and many may see Level 3 as redundant due to the same exam as Level 4. If you're aiming for the stars, then the unlimited license of Level 4 is the way to go.