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HOW
A SEPTIC SYSTEM FUNCTIONS
1.
PURPOSE
Frequently prospective buyers of a single family home have many questions regarding
the septic system serving the dwelling: What does the existing septic system
consist of? Is it working properly? How long will it last? If it fails, how
much will a replacement system cost?
The attached “Connecticut Recommended Minimum Existing Septic System Inspection
Form,” should answer many of the above questions. In order for a buyer
who is not familiar with the operation and proper maintenance of a septic system
to understand the terminology made in the inspection report, the following fact
sheet has been prepared.
2. OVERVIEW OF SUBSURFACE SEWAGE DISPOSAL SYSTEM
The purpose of a home's subsurface sewage disposal system (septic system)
is to dispose of the wastewater generated by the occupants in such a manner
that the soils on the property can disperse it without causing an adverse
effect on groundwater and in turn on public health and the environment. To
accomplish this, domestic sewage is directed to a system consisting of the
following elements:
(1) A building sewer, which connects the home's plumbing to the septic tank.
(2) A septic tank, which allows for the settling of solids and provides the
initial treatment of the sewage. This is where waste material is broken down
by bacterial action. A properly functioning septic tank will reduce pollutant
levels and produce an effluent of fairly uniform quality.
(3) A distribution system, which directs the flow of effluent from the septic
tank to the drainage system in a manner that assures full utilization of the
system. Most systems are "gravity" systems, meaning the effluent
flows through piping and distribution boxes without the assistance of any
mechanical device, such as a pump or siphon.
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