Types of Septic Systems

The handling of waste water differs from one area to another based upon the population, customs, laws and soil composition.   In rural areas, a self-contained system consisting of drain lines, septic tank and field lines composes the system.  Each home or business has it’s own system and is not linked to another.  That is most practical in that type of situation.  The  size of the tank is determined by the estimate of usage.   Most times,  a home system is determined by the number of bedrooms in a home.

The type of field line system is based not only on usage but soil type and topography.    A soil that is porous will absorb more soil than a soil that is heavily compacted or contains clay.   In the past, most homes were provided with a perforated pipe system that was laid within a bed of gravel to increase the amount of contact with the surrounding soil and handle large amounts of waste water at some times.   A more modern and efficient approach is the use of larger piping that has a sock or fabric surrounding it.  The sock increases the soil contact and helps prevent roots from entering the pipe perforations.

Another system of field lines use a chamber system.   This is a boxy-looking plastic line that is open on the bottom.  The sections are joined together and the system of chambers is often set upon a bed of gravel, especially if the soil contains clay and is therefore tight.   This increases the absorbtion rate.