Proper pumping equipment will clean out scum, sludge, and all liquid. The pumpings will be disposed at an approved facility. A thorough pumping service should include inspection of the inlet and outlet fittings. The license number should be given to you upon request and can be verified through the Environmental Health Office. The Environmental Health Office has a list of local licensed pumpers, or you can consult the Yellow Pages of your telephone directory.
Incoming sewage contains all the bacteria needed for proper operation.
The use of enzymes and other additives has not been shown to be of significant value. While their use may not harm the system, some may pose environmental hazards to the disposal field area or ground water. They do not take the place of regular maintenance. Predicting System Failure Septic systems generally give little warning that they are about to fail. Fixtures and toilets backing up or draining more slowly.