A wastewater treatment that is as natural as, well, Nature!

A passive treatment septic system like the System O)) involves processes that often occur naturally in the environment. So it requires little or no maintenance – including draining pipes or replacing filter media – and no power.

residential septic system installation

Water, water and more water!

If you are not connected to your municipality’s sewer systems, you need to have a septic tank to collect the wastewater from your home. But it cannot manage the amount of water a family produces on a daily basis: showers, toilet, dishwasher, laundry, and more! That’s a lot of water liters per day that need to be put back safely into the environment.

The septic tank retains the solids, but the liquids must be distributed, treated and infiltrated into the ground – and this is where System O)) solutions come into play. They are the only solutions that distribute, treat and infiltrate wastewater in a single activity.

Long live bacteria!

Wastewater is treated by aerobic and anaerobic bacteria that settle on the edges of the perforated pipes at the heart of the System O)) septic systems. These two types of bacteria feed on pollutants in the water and control each other to keep the biomass from growing too large and therefore having to be removed.

natural wastewater treatment system
septic field construction

A comfortable sand bed

The system sand surrounding the pipes is an integral part of the treatment.

Its role is to allow the water to drain at a specific speed: slowly enough to allow the bacteria to do their job, yet fast enough to avoid flooding. Its granular composition is therefore very distinctive, and very important.

Take a deep breath

Bacteria need oxygen, whether dissolved for anaerobic bacteria, or in the air for their aerobic cousins. That is why System O)) septic solutions are ventilated, which means there is a continuous supply of air inside the pipes. The air enters through the installation’s vent and exits through the house’s roof plumbing vent. Septic tank odors therefore go up and out into the sky, and not through the patio door.

How does a septic system work? 1


Onsite Residential Wastewater Treatment Technologies, standard applied in Canada and managed by the BNQ (Bureau de normalisation du Québec – Quebec Standards Agency);

Standalone Wastewater Treatment Systems for Isolated Isolated dwellings, standard applied in the province of Québec, in Canada and managed by the BNQ (Bureau de normalisation du Québec – Quebec Standards Agency)

Residential Onsite Systems, standard applied in the U.S.A. and managed by the National Sanitation Foundation;