All Clear Septic All Clear Septic and Wastewater Services recommends that homeowners have their Septic tank pumped at a minimum of every three years. This should be done more often depending on factors such as size of tank, number of people in the home and water usage. If you need your septic tank pumped in MA or RI or you are unsure please contact our office at 508-763-4431.   We are happy to answer any questions and schedule an appointment if necessary.  Also visit for answers to many of your septic questions.