Case Studies: Septic and Sewer Systems

Case Studies: Septic and Sewer Systems
Plumber installs macerator pump in own basement bathroom

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Heavy-duty grinder pump chosen as a cost-saving solution for unusual floating bathroom application

Problem: The lifeguards employed at Bonelli Park in San Dimas, California, have a unique headquarters for when they need to take a break or use the bathroom while on duty — a floating boathouse on the 250-acre lake. But, after years of use, the existing facility recently needed a remodel, especially the bathroom within, due to an inaccessible leak.

Solution: The team at Saniflo recommended the Sanibest Pro for the application. Ideal for public facilities that cannot be closely monitored, the heavy-duty grinder can quickly dispose of larger objects that might well clog a conventional toilet. In the case of the floating facility, the wastewater from both the toilet and the sink flow through a 1-inch discharge pipe from the Sanibest Pro up 25 feet into the park’s sewage system.

Result: The entire bathroom application took less than a day to finish and went smoothly. “We were working with a smaller budget and choosing Saniflo helped us stay within scope,” says project manager John Tietjen. “Also, I’m very big on customer service. When Saniflo showed up, on site, with a truck that had a toilet in the back for a demo, I had a great feeling.” 800-363-5874;

Pretreating high-strength waste for orchard and winery

Problem: After one year of careful monitoring by the local county health department and the Indiana Department of Health, it was determined in 2017 that the waste strength loading at Huber’s Orchard and Winery, located in Starlight, Indiana, was too high for the new mound system, and an additional pretreatment system was needed to lower the waste strength prior to discharge to the mounds.

Solution: Zoeller Pump Co. offered design assistance and components for a new mound system to treat waste from numerous structures. They recommended a recirculating media filter (RMF) treatment system to be installed between the existing septic tanks and the mound system. The treatment systems are similar to recirculating sand filters, with the main difference being the size of the treatment media, which is typically 3/8-inch-diameter pea gravel instead of sand media. Zoeller found after many years of use that 3/8-inch pea gravel does not plug. A local engineer designed the new RMF at 4,000 gpd using a waste strength of approximately 700 mg/L BOD5, which required a 30-by-30-foot RMF. Commissioning of the RMF was done in October 2019.

Result: After one month, the new RMF was treating wastewater efficiently, meeting the objective of effectively pretreating effluent prior to discharge to the mound system. Samples collected averaged 10.5 mg/L BOD5 and 2.3 mg/L TSS. 800-928-7867; 


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