Upfront Septic performed a septic inspection at a North Bend, WA property as part of the property sale process. The inspection did not include pumping. Upon arrival, our technicians found the main lid of the single-compartment septic tank exposed beneath a deck. To access the remaining components, the team removed additional deck boards and excavated to locate the inlet and outlet lids.
During the inspection, our technicians found that the inlet and outlet lids were not airtight or watertight. A gap was also present where the mainline from the house connects to the septic tank, indicating that the connection needs to be resealed.
The distribution box (D-box) was equipped with a riser and accepted 450 gallons during the unoccupied stress test. However, the drainfield distribution system showed a potential flow issue. The property has three lateral lines, and the line on the right when facing the back fence did not receive flow while water was introduced at a low rate. This suggests that the distribution system may need adjustment to help direct wastewater more evenly across the drainfield.
Recommended follow-up work includes installing two 12-inch risers and one 24-inch riser, resealing the mainline connection, and adding levelers inside the distribution box to help improve flow to the drainfield. These improvements can provide better access for future maintenance, help seal the tank openings, and support more balanced wastewater distribution across the drainfield.
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