Not everyone has the same idea as to what a great sewage system is.
The Ontario Building Code classifies sewage systems according to design and function:
- Class 1 (Privy, Portable, Incinerating & Composting Toilets) – Designed for the disposal of human body waste only (no added water).
- Class 2 (Leaching Pit) – Designed for the treatment and disposal of a calculated amount of grey water (sewage other than human body waste).
- Class 3 (Cesspool) – Designed to only receive the contents of a Class 1 sewage system.
- Class 4 (Septic System) – Designed to receive specific amounts of sanitary sewage and includes a treatment unit septic tank, secondary treatment tank and conventional leaching bed.
- Class 5 (Holding Tank) – Designed to retain sanitary sewage on-site in a holding tank, and emptied by a licensed sewage hauler.
Depending on where you live, your site specifications and parameters will determine which sewage system can be used. If you have the wrong type, it will likely need to be decommissioned as generally, two types would not be permissible.