Presby passive wastewater treatment system

The EnviroFin passive onsite wastewater treatment and dispersal system from Presby Environmental is designed for residential and commercial applications. The product has no mechanical parts, does not need chemicals or have energy requirements. The product passed and exceeded the NSF 40 protocol at the Massachusetts Alternative Septic System Test Center (MASSTC) in Sandwich, Massachusetts. Effluent leaves the septic tank and enters an EnviroFin unit, consisting of a center fin distribution unit and eight treatment fins filled with randomly oriented green plastic fibers and a perforated pipe acting as an air duct. The effluent fills the FDU until it enters the treatment fin through perforations around the FDU. 800/473-5298;


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