Septic Tanks combined with a French drain for a drainage system is one of the most common sewerage waste systems used in South Africa, especially in areas which do not have access to a municipal waste system.
The solids settle to the bottom, the scum floats to the top and the liquid overflows through an outlet pipe into a distribution chamber, where it is directed into the septic field. The septic field is an effluent water disposal system, where the liquid is channelled through perforated pipes to different parts of a field of loose gravel.
Brick built septic tanks and French drains are common on most agricultural holdings, depending on the soil porosity and the local municipality by laws. Systems, like septic tanks and French drains have many variations – all based of course on the basic principle of waste treatment.
A built system normally comprises of three chambers which allows the solids in the waste water to separate. The solids either float to the surface or goes to the bottom where the decomposition/treatment of micro-organisms takes place.
The remaining waste water run directly into a French Drain which channels the water away. Many septic tanks have a filtration tank where the waste water is filtered before leaving the system into the French drain.
Polyrib septic tanks or Polyethinine are the norm of the modern day waste water treatment process. Very convenient and built for this purpose. These septic tanks can be easily installed with minimal problems and can easily be connected to a French drain.
With proper care and maintenance, your septic tank and field should provide many years of trouble-free service. There are, however, some important steps to follow to help you maintain the proper operation of your sewage disposal system.
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