Why Proper Ventilation is Important for Septic Systems

Proper Ventilation for septic system in California

Proper ventilation is vitally important with any septic systems. Unfortunately, almost every homeowner has at some point smelled the “rotten egg” odor associated with the seeping septic gases that result from improper ventilation. Fortunately, NexGen Septics are here with some ventilation advice to help you avoid this discouraging situation.

Septic Tank Overview

Most septic tanks consist of a large concrete, steel, fiberglass, or poly container of around 1,000 gallons in volume. They are traditional buried underground near a house or commercial building. Connected to this tank are the pipes and toilets located in the nearby structure. When someone in the building flushes a toilet, the waste travels through the pipes and into the tank, where it settles at the bottom and decomposes. Meanwhile, the water flows to the local water treatment facility or a drain field.

A Septic Tank’s Vent

When empty, the septic tank is nothing more than a huge underground cavity that’s comprised mostly of air. The tank and its plumbing system are sealed, which means the air inside is trapped. However, as the tank fills with waste and water run-off, the air needs somewhere to go – otherwise, the pressure it creates will halt the flow of waste and back up the toilets, etc. in the adjacent home. This is why proper venting of a septic tank and the system are crucial. All of the gases are to be vented back through the house and out of the vents in the roof. Eliminating the odors that are often associated with a failing system or lack of ventilation.

Ventilation Speed

Since septic tanks function using gravity and nothing else, the frequency and speed with which air is ventilated depends on how fast the tank fills up – or on the flipside, dries out. But as long as the air has somewhere to go, flowage from the structure to the tank will continue like clockwork (absent some other form of blockage).

Odor Control

Since the odor coming from a septic tank is usually not a chronic problem, some people living or working in the vicinity of a tank are content to deal with periodic foul odors, as long as the system works. However, there are just as many people who would rather not indulge the smell, ever. For this group there are a few odor-control options:

Increasing The Vent Pipe’s Height

As mentioned earlier, the ventilation pipe is responsible for ventilating the air and gases from inside the septic tank. Increasing the height of this pipe makes it possible to release the odors at a higher level, one that ideally sees the ventilated air blown over the structure on a windy day.

Pruning Nearby Trees

Homes and buildings located in wooded areas can sometimes see this natural beauty work against them, in the form of the trees blocking dispersal of the ventilated air and gas. The solution to this problem is to prune nearby trees to open up better “ventilation paths” around the septic system.

Charcoal Vent Filter

This inexpensive solution involves attaching charcoal vent filter to the top of the existing ventilation pipe. A charcoal filter allows air and gases to continue passing through but removes the odor that accompanies them. This vent can also be attached to the home/business’s rooftop ventilation pipe, which serves as a secondary septic ventilation system, pulling odors up and out of the home and doing so above the roof line.

Contact NexGen Septics

For all of your septic system needs, contact NexGen Septics in Rocklin, CA. As a provider of some of the industry’s most advanced septic systems, our experienced team provides insight into septic system installation, maintenance, odor removal, and much more.

NexGen Customer Testimonial Video

Client Reviews about NexGen Septics

NexGen Customer Testimonial


“We needed to get a new system because we were pumping our septic tank about twice every couple months during the rainy season. We found out about NexGen from Gene Graves our contractor and we’d actually looked into a different system initially before we heard about Presby. I had to just read about it online. I went over to the other property and saw this Presby System going in.

You need to get something that you can forget about and that you are confident that’s going to work. It is your waste from your house and so you want to have an assurance about that system. I really hope that other people who need it, that they will use it because the benefits are great and we don’t have to worry about it anymore, which is huge.”

NexGen Septic System Products

septic system products

As a company at the forefront of innovative water treatment solutions, NexGen Septics provides some of the market’s most innovative septic system products. Let’s look closer at a few of the products that have established us a key player in eco-friendly septic systems for municipal, commercial, and residential applications.


EnviroFin is an inexpensive, easy-to-install, low-maintenance septic system solution that stands as one of the most cost-effective wastewater solutions currently on the market. Whereas the other Alternative Treatment Units available utilize mechanical devices and consume a considerable amount of electricity, EnviroFin’s passive, non-mechanical filtration for wastewater treatment and dispersal operates at a far more economical level in terms of install cost and ongoing maintenance/repairs.

The EnviroFin’s 10-stage treatment process confirms this system’s incredible durability, with the process being repeated over and over with close to zero maintenance needed once the EnviroFin is up and running. Comprised of just five core components, EnviroFin is one of the simplest water treatment solutions ever conceived, and yet its groundbreaking design positions it as an effective system for a huge variety of applications. In fact, EnviroFin’s simplicity renders it especially effective for tough projects such as those in difficult environments or with a zero lot line.

EnviroFin surpasses the water treatment standards established by NSF/ANSI 40, which is no surprise considering that it treats effluent by using passive cleaning technology and naturally-occurring bacteria. The system has already been green-lighted for Maine, Alabama, and New Hampshire, and is already running in California.

Advanced Enviro-Septic System

Similar to EnviroFin, the Advanced Enviro-Septic System from NexGen Septics is adaptable to a variety of needs across commercial, residential, and municipal sectors. And like EnviroFin, this progressive solution utilizes naturally-occurring bacteria to decontaminate effluent before releasing it back into the soil and into the water table.

For evidence of the Advanced Enviro-Septic System’s unparalleled cost-effectiveness, consider that a standard water treatment solution takes 2 – 7 days to install, whereas the Advanced Enviro-Septic System can be setup in as little as eight hours. And while standard solutions almost always require ongoing maintenance (and by extension, ongoing investment), with the Advanced Enviro-Septic System you don’t have to worry about maintenance or monthly fees, or electrical and additives for that matter. The result is an actual cost that’s less than half the expense of a standard water treatment system.

Simple yet sophisticated, the Advanced Enviro-Septic System provides superior longevity and durability while removing up to 99% of wastewater contaminants.