Routine Septic Pumping With Extreme 260-Foot Access & 60-Foot Elevation – Chaska, MN

 · Chaska, Carver County, MN  · Septic Pumping

Problem

This Chaska property needed routine septic maintenance pumping, but the system has one of the most difficult access configurations we have encountered. The septic tanks are located approximately 260 feet from where the pump truck can safely park, with roughly 60 feet of elevation difference. The system includes a 1,000-gallon septic tank with a concrete manhole approximately 6 inches below grade, followed by a 1,500-gallon two-compartment tank. The 1,000-gallon compartment serves as the second septic tank, while the 500-gallon compartment serves as the pump tank for the mound system. Because of the extreme distance and elevation, a conventional vacuum truck cannot effectively pull the wastewater directly from the tanks. The combination of the long hose run, steep elevation change, tank layout, and buried access makes routine maintenance unusually difficult and time-consuming. RESOLUTION

Solution

Minnesota Sewer Pros completed the routine maintenance pumping using an airlift process to move the wastewater through the approximately 260-foot hose run and overcome the roughly 60-foot elevation difference. Airlifting is considerably slower than normal vacuum pumping but was necessary because of the property's extreme access conditions. All accessible septic compartments were serviced as part of the maintenance visit, including the primary septic tank and the two-compartment septic/pump tank serving the mound system. Due to the unusual system design and difficult access, future maintenance should be planned carefully and performed before the tanks become excessively full.