Call Jimmy Duncan General Pumping LLC for Immediate Service. Family owned and operated since 1976. Dependable service at competitive rate. Call Jimmy Duncan for all your septic needs.<br />. Full Service Septic Tank Service Company- Family Owned & Operated Since 1976! Septic Tanks,Septic Cleaning Cleaning,Residential & Commercial Work,Plumbing Drain & Sewer Cleaning,Sewage Disposal,Grease Traps,Outside Pits & General Pumping.