Sewer and Septic Tank Services paw-paw-septic-tank-maintenance septic-sewer-service. You can prevent inconvenient, messy and costly septic tank problems by having your septic tank regularly maintained. Septic system maintenance simply consists of pumping out the sludge that always accumulates in the bottom of the tank and making sure there is a healthy level of good bacteria to break the waste down. A & B Sewer & Septic has 60 years of experience. You count on us for courteous, professional, and personalized service.