OVERVIEW OF THE CONVENTIONAL SEPTIC SYSTEM

According to the Cornell Cooperative Extension, the average American household generates 55-75 gallons of wastewater per person per day from sources including toilets, showers, sinks, dishwashers & washing machines. Septic systems are designed to collect, treat and dispose of household wastewater without contaminating groundwater. Your septic system consists of three basic parts: a septic tank a drain field and the soil under the drain field. In a properly working system, the tank receives sewage from the house and traps the solids, allowing effluent to pass to the drain field into the soil where it is discharged for final treatment. As the effluent filters down through the soil, any remaining organic matter, pathogens, and suspended solids are treated and removed.

Septic systems are very reliable as long as they are properly designed, constructed and maintained. A properly maintained septic system will have a lifespan of approximately 20 to 30 years. Regular maintenance fees of $125-500 every three to four years is a bargain compared to the cost of repairing or replacing a malfunctioning system. 

HOW IT WORKS

 "Your septic tank is the first step of an onsite domestic wastewater treatment process & must be properly maintained to work correctly. The best designed & operated septic tank & soil treatment area eventually fails unless sludge is periodically removed from the septic tank.*" In the tank, suspended solids are broken down by bacteria to form a scum mat on top and a layer of sludge on the bottom. Over time, the scum and sludge layers grow thicker, gradually decreasing the volume of clear effluent in between. For more information on scum and sludge, visit COMPONENTS.

*Source: https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az1160.pdf

sIDE VIEW- SINGLE COMPARTMENT

sIDE VIEW- YAVAPAI PRECAST TANK (nO FILTER)

SIDE VIEW- YAVAPAI PRESCAST TANK (WITH FILTER TEE)

how a septic tank traps solids


septic tank with concrete baffles

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septic tank with plastic baffles


MAINTENANCE

Maintenance of your system is accomplished by regularly scheduled pump outs of accumulated solids from the tank. As solids increase and the clear effluent space in between decreases, solids will enter the disposal area and clog soil pores.