Yes, you need septic tank pumping in Sherwood.  Your septic drain field might become clogged if your septic tank’s solids are not drained. Your drain field becomes ineffective at filtration due to the formation of a bio-mat. Water will back up in the drain field when it cannot filter through the soil. Consequently, wastewater pools above the leech lines in your yard can cause sewer backups in your home. The backup of wastewater in your home may occur even if your septic tank has a sanitary tee with a filter.