top of page

SEPTIC SYSTEM Install | Is $elf Building Worth It? | Ep 16

Barndominium septic system

Alright, guys, welcome back to MR Post Frame. In this series, we're delving into the topic of self-building and today's focus is on conventional septic systems. But before we plunge into the intricacies of septic installations, let me take a moment to extend our services to you. If you're in need of assistance with designing a barndominium, shed, or any other structure, feel free to reach out to us at Additionally, we have a vibrant patron group tailored for self-builders and post-frame building enthusiasts, providing a supportive community where you can share your projects and ask questions. So, be sure to check that out as well.

Now, let's delve into the world of septic systems. When it comes to tackling a septic tank installation yourself, it's crucial to equip yourself with the necessary expertise and tools. A laser level, for instance, plays a pivotal role in ensuring that all your field lines are impeccably level, a detail that cannot be overlooked, especially with a conventional gravity-fed system like the one I'm currently setting up.

How to install your own septic system

Speaking of systems, the variety of septic systems available can be overwhelming. However, for those residing in rural areas, a septic system is often a necessity. From conventional leach fields to sand filters and other options, the choice depends on various factors, including regulatory requirements and soil percolation rates determined by a perk test. In our case, the results of the perk test dictated the size and type of system we opted for.

Now, onto a commonly asked question: why are these septic systems so sizable? Well, it all boils down to regulations and calculations based on the number of bedrooms in your residence. County regulations typically mandate that the system must be capable of accommodating a certain number of individuals, usually assuming two per bedroom. Therefore, with a five-bedroom house like ours, the system's size must be sufficient for ten full-time residents.

DIY Septic System

But can you embark on a DIY septic system installation? Absolutely, but it demands mechanical proficiency and a deep understanding of the system's mechanics. Gravity plays a pivotal role in ensuring optimal flow, while meticulous trench digging is paramount. Moreover, familiarity with regulations and requirements is indispensable to preempt any potential issues down the line.

As for maintenance and lifespan considerations, septic systems are engineered to collect solids and treat wastewater efficiently. With proper care and adherence to regulations, they can endure for decades. However, factors such as detergent usage and groundwater levels can impact their longevity. Regular pumping and compliance with regulations are essential to ensure continued efficacy.

Post Frame Home Septic System

Addressing concerns about system depth and freezing, meticulous design and insulation measures obviate freezing issues, even in colder climates. Nonetheless, factors such as livestock activity or heavy vehicular traffic over the system can potentially precipitate problems, underscoring the importance of maintaining optimal conditions.

In conclusion, while the prospect of installing and maintaining a septic system may seem daunting, armed with the requisite knowledge and precautions, it's a feasible undertaking. It's imperative to recognize that regulations are in place to safeguard environmental and public health. Whether you opt for a DIY approach or enlist professional assistance, adherence to guidelines ensures the functionality and efficiency of your septic system. We look forward to assisting you in your building endeavors. See you in the next post!

Thank you,

MR Post Frame

MR Post Frame Patreon

Patreon Group:

Interested in tackling your build on your own? If you want to explore the possibility of being your GC or self-building, our Patreon membership is for you! It's a community of like-minded people offering support, discounts, Q/A, and more.

bottom of page