Hukills Septic Installation Services

A standard septic system is normally a 1000 or 1500 gallon septic tank that is installed with a gravity line that leaves the septic tank carrying liquid out to a drain field that is installed with perforated pipe and distribution collection boxes where the water will absorb into the existing soil.

The patented AdvanTex Treatment System is a significant improvement on a proven method. AdvanTex works just like a recirculating sand filter (RSF), a reliable technology that Orenco has helped to perfect over the past 20 years.

Just like an RSF, your AdvanTex system includes a processing tank and a control panel with a programmable timer for even, steady wastewater treatment, even under peak conditions — such as parties and weekend clothes washing.

The system also includes the AdvanTex textile filter, a sturdy, watertight fiberglass basin filled with an engineered textile material. This lightweight, highly absorbent material treats a tremendous amount of wastewater in a small space.

More than 15,000 of Orenco's textile filters have been installed throughout the United States, Canada, Europe, and Australasia on sites ranging from federal demonstration projects to university testing facilities, single-family homes, commercial properties, and community systems. Third-party testing shows that AdvanTex Treatment Systems do a better job of treating wastewater than most municipal sewers.

Sand Filter Systems

In a sand filter system, sewage flows from the house into one or several septic tanks, depending upon the size of the house and local requirements. Effluent from the septic tank(s) flows into a pump or lift tank. A pump introduces the effluent at the top of the watertight sand filter, using pressure distribution to apply the wastewater evenly to the filter surface to maximize treatment. A timer is used to dose the entire surface of the filter intermittently with wastewater. This draws oxygen from the atmosphere through the sand medium and its attached microbial community. The effluent is treated by physical, chemical, and biological processes. Suspended solids are removed by mechanical straining due to enhanced contact and sedimentation. Treatment occurs through the bacteria that colonize in the sand grains. Microorganisms use the organic matter and nutrients in the effluent for growth and reproduction.

The two main types of sand filters differ in the rate at which wastewater is introduced into the system. Loading rates determine the amount of maintenance needed and how long the system will last. A single-pass filter with a high loading rate needs regular cleaning (every six months to a year) of the sand surface to prevent clogging.

In high-rate sand filters, effluent is applied at rates of 1.6 to 5 gallons per day per square foot. This application rate means the surface of the filter must be easy to access. That is why high-rate sand filters are more common in warmer climates where they can be left open or have a lid that is easily removed.

Low-rate sand filters are the most common designs in Oregon. Effluent from the pump tank is applied at rates of 0.8-1.5 gallons per day per square foot. Sizing criteria used for low-rate sand filters are similar to those for rock beds in mound soil treatment systems. These systems are covered with 6 inches of loamy topsoil and vegetation to provide insulation during the winter.

Single-pass sand filters are an effective way to treat wastewater in an onsite application. The sand filter system has been used for more than 30 years across the United States and there is significant design, treatment, and maintenance experience with these systems. Sand filter systems are very reliable in treatment of BOD, TSS, and fecal coliform. The system protects the final soil treatment area because failure will occur in the sand filter before the soil treatment system is significantly affected. Single-pass sand filters require more area that recirculating filters and are not a good choice for small lots.