Case Studies - December 2020

Case Studies - December 2020

Sand filtration system a fit for property  with shallow water table

Problem: An owner in North Smithfield, Rhode Island, needed to replace a cesspool for a two-bedroom home so the property would pass a time-of-sale inspection. The property had a shallow water table, and all setbacks had to be met for a code-compliant system. The builder wanted the system to be installed below grade so it wouldn’t detract from the curb appeal.

Solution: D.H. Keene Septic designed the system and chose Eljen GSF (Geotextile Sand Filter) B43 modules for the drainfield because of the reduction in footprint size and shallow profile compared to a traditional system. The 80-foot-long by 4-foot-wide trench was placed within the setbacks of the property line and well by Matt Osborne and Dan Marcotte from Ken’s Excavating. A tipping distribution box delivers effluent to the 18 GSF modules from new 1,000-gallon septic tank.

Result: The home has a code-compliant system installed quickly so the property could be sold. The GSF system was installed in a smaller footprint than a stone-and-pipe system but requires the same maintenance. 800-444-1359; www.eljen.com.


Grinder pumps used to keep  sewer pump system clear

Problem: At least once a month, residents of a New Jersey townhome complex saw a familiar sight: a septic truck unclogging their sewer pump system and cleaning out the well. The multifamily complex utilized a four-pump system originally engineered for single-family homes, and it was seriously underperforming with a limited pumping capacity of 11 gpm. This caused rags and solids to accumulate in the basin, and frequent vacuum truck visits to keep the system operational.

Solution: With the cost of emergency repairs and quarterly maintenance adding up, the facility turned to Franklin Electric’s FPS IGP Series grinder pumps. Designed as a direct replacement for small-horsepower progressive cavity and other centrifugal grinder systems, the 2 hp pumps could easily tackle larger jobs. With a maximum flow rate of up to 33 gpm, the quadplex system was simplified to a triplex. These pumps were also designed for retrofit applications, allowing the owner to keep the existing basin and modify the controls. In addition, the pumps were installed on a guiderail. When routine maintenance is required, service techs can easily slide the pumps out of the well, streamlining pump cleaning.

Result: Installed in 2018, the system has never clogged, eliminating monthly septic truck visits and maintenance and emergency repair costs. 800-348-2420; www.franklinengineered.com.  



Discussion

Comments on this site are submitted by users and are not endorsed by nor do they reflect the views or opinions of COLE Publishing, Inc. Comments are moderated before being posted.