Although the Advanced Enviro))Septic technology at the heart of all System O)) solutions are completely passive with an incredibly simple use, some elements are essential to ensure its optimal functioning, unequalled durability and worry-free performance for its owner.
The ventilation is one of these elements. It allows not only for oxygen to flow – required for the metabolism of aerobic bacteria – but also for the appropriate evacuation of fermentation gasses that are generated during the biological degradation of pollutants.
This is why it is so important to ensure – in its design, installation and use – that the regular passage of air through the system is adequate
VENTILATION
Basically…
In its most rudimentary form – that is, when it is gravity-fed – the passage of air within a System O)) system requires only the installation of an entry vent at the piezometer end of the system.
This vent allows air to enter, then move through the Advanced Enviro))Septic pipes to cross the distribution box and the septic tank before evacuating through the exit vent, which is located on the roof of the house. A 3-m minimum height differential is required between the vents to ensure an adequate air flow.
Specific situations can require the ventilation be modified to maintain the proper passage of air
Using a lifting station
As the ventilation must necessarily go through the septic tank to reach the roof vent, this circuit is inevitably broken by the
outflow pipe when a lifting station is in play. The System O)) solution must then be ventilated another way. Two options are
possible:
The bypass pipe
You can bypass the lifting station to ensure the free passage of air. This way, the air flow will still have access to the pre-treatment tank and the roof vent. In this case, a bypass line must be installed inside the lifting station or upstream from it.
Installing an exit vent
In some situations where the lifting station is far from the System O)) solution, the best option is to install a second vent – an exit vent – at the start of the system. The 3-m minimum differential remains very important.
You should hide the exit vent behind a tree or an infrastructure, for aesthetic reasons.
HIDING THE ENTRY VENT
We also recommend hiding the entry vent, but two essential elements must be respected:
1. A high point must be installed to avoid having wastewater flow out during high water moments in the system
2. A “T” with anti-vermin grid or drilled 90° elbow must be installed under the vent to allow the condensation to evacuate.
Here is the related InfoDBO – The ventilation.
