All Clear Septic and Wastewater Services All Clear Septic and Wastewater Services are cleaning septic systems in Jamestown, North Kingstown, Narragansett, Exeter, Richmond, Hopkinton and Charlestown, RI today.  To increase the longevity of your septic system and to ensure that it is working efficiently it is recommended that you carry out regular maintenance including septic cleaning.  The frequency that your septic system needs cleaning depends on the water usage for your Septic System and the size of your septic system, among other factors.  We would suggest septic cleaning and pumping every 3 – 5 years.  If you have a garbage disposal this will increase to annually.  If you are unsure or if you have any questions please do contact our office at 508-763-4431 or visit