How is a RUCK system constructed?
The RUCK filter is constructed in layers inside a landfill liner. At the bottom of the RUCK filter is a collection layer composed of crushed stone. The bottom of the filter is sloped to accommodate a collection pipe. Above the collection layer is a twelve-inch layer of sand, then a two-inch layer of crushed stone, then a twelve-inch layer of sand then a two-inch layer of crushed stone, then a twelve-inch layer of sand, then a layer of crushed stone where the effluent is applied. There are vent pipes installed in the vent layers with two vertical pipes installed to the atmosphere. One at ground elevation and one at roof top elevation. This change in elevation promotes the chimney effect to heighten the capability of the aerobic condition. Across the RUCK filter, the elevations drop 4 feet. The graywater septic tank always has to be H-20.
