Operation of sand filter systems does not usually require highly skilled personnel, and the systems themselves are moderately inexpensive to build. Some routine maintenance is necessary for sand filter systems, with the type and amount of maintenance dependent upon the particular sand filter design. V. Limitations Land availability on the site may limit the applicability of recirculating intermittent sand filters. Some odors may result from these systems if they are not properly installed and maintained, depending upon the particular design. In order for sand filters to continue functioning properly, they must be adequately maintained.
Electrical power is required for recirculating sand filter units.
This system must be designed by a licensed professional engineer, and requires special permitting review and consideration. All of the materials and equipment used for constructing these sand filter units are available from several local sources. These include washed graded sand and gravel, geotextile fabric, piping, concrete, pumps and tanks, etc. Residuals Generation Clogging of the surface of sand filters may occur as the pore space between the media begins to fill with inert and biological materials. Sand media removed must either disposed of at a sanitary landfill, or regenerated if such operations are available and cost-effective locally.