Septic Tank Maintenance
To avoid septic system malfunctions, it is important to have your septic tanks routinely pumped and cleaned. It is recommended that septic tanks are pumped and cleaned every two to three years, but this can vary with the size of the tank and number of people in the household.
When you have your tank(s) pumped, it must be done through the manhole cover and not through the inspection port. Pumping through the manhole cover allows for all the solids to be removed, not just the liquids. To extract all the materials from the tank, the scum and grease layer must be broken up and the sludge layer stirred up into the liquids portion of the tank. This is done by a process called backflushing. During this, the pumper will pump the liquid from the tank, then forcing it back into the tank. Once this process is complete, the tank should be free of all material.
Chemical or bacterial additives are not necessary for your septic system to function properly. There are naturally occurring bacteria in waste that aids in the breaking down of solids, so adding extra is just not necessary. Additives are not a substiture for routine pumping and cleaning!