All Clear Septic and Wastewater Services All Clear Septic and Wastewater Services has appointments for septic pumping today in Attleboro, Rehoboth, Seekonk, Fall River, Swansea, Westport, Mattapoisett, and Marion, MA.  If your property has a septic system, an essential part of your systems’ maintenance is regular septic pumping.  The regularity of the pumping depends on various factors, including the size of your tank and the usage of your system.  However, on average, tanks need to be pumped every 3 – 5 years.  If you need septic pumping or you have questions about septic pumping please do contact our office at 508-763-4431 or visit