The rest of the wastewater treatment and ultimately the liquid disposal occurs in the drainfield.Īs you will read below, there is no one "right" septic absorption field size. How large does the septic drainfield need to be?Ī conventional septic tank performs roughly 45% of the sewage treatment or less at a private home served by a septic system. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. The types of septic absorption field designs explained below are: In onsite wastewater treatment systems, conventionally called "septic systems". Septic drainfields, also called leach fields, absorption beds, soil absorption systems, soakaway beds, and leaching beds, perform the functions of septic effluent treatment and disposal We discuss septic drainfield trench lengths for various soil perc rates and wastewater flows. We discuss rules of thumb used to set the size of a conventional septic drainfield. This article and its tables explain how to determine the size and design of a septic leachfield or soakaway bed or drainfield. We have no relationship with advertisers, products, or services discussed at this website. InspectAPedia tolerates no conflicts of interest.
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