A Septic tank is an underground chamber that is made of plastic, fibreglass or concrete and is a form of treatment for domestic wastewater. Septic tanks work by collecting excrement and wastewater in a large underground tank which is then biologically decomposed and drained.
Septic tanks allow for a safe and hygienic disposal of wastewater and are therefore extremely popular in areas without mainline sewage and drainage networks and systems. Across Yorkshire, many homeowners in rural areas reap the benefits of septic tanks, as they are too far away to make use from a city or town’s sewage and drainage systems.
Know the basics
A septic tank system has a wonderfully simple design, the watertight container is connected with two pipes (inlet and outlet). The inlet pipes collect wastewater in the septic tank, these are long enough that the solid and liquid waste separates. The outlet pipes move out the processed wastewater from the septic tank, spreading it evenly in the soil and watercourses.
After a while, the wastewater separates into 3 layers; the top layer is grease and oil which floats above the wastewater, this is called scum. The middle layer is the wastewater and waste particles and the bottom layer is a sludge which consists of heavier particles.
Inside the septic tank, the bacteria from the wastewater gradually breaks down the solid waste. These bacteria decompose the solid waste which allows the liquids to separate and drain more easily.
Cleaning the Septic tank
A septic tank needs to be cleaned regularly as toxins and antibacterial build-up can kill the vital bacteria that breaks down the waste. It is advised that septic tanks are cleaned every 12 months, however this can vary depending on how many people live in the household.
At Alternative Drainage, we provide a full septic tank cleaning and maintenance service for domestic and commercial properties across Yorkshire. For more information, please call a member of our team today on 0800 980 1362.