Septic Tank Additives

When a septic system fails or starts exhibiting signs of impending failure, many people start looking for an easy solution.  This is entirely understandable since repairing or replacing a failed septic system can be very expensive.  It is tempting to believe the advertisements for various miracle chemicals and other additives that purport to cure your septic system’s problems.  Even when the septic system is working fine, misinformation has led many well meaning people to put various chemicals or additives into their septic system in the belief that it will help keep the system working well.

The reality is that there is no magic solution for a failed septic system and there is no independent verification that any additives or chemicals will help a septic system work any better.   In fact, putting anything into a septic system other than human waste and normal wastewater will, at best, have no effect on the system and more likely can cause damage to the septic system.

Septic systems are designed to work using gravity and the biological action of naturally occurring microscopic organisms.  No additives are necessary.  In fact, many additives can cause the effluent in the tank to become stirred up or to hold more solid material in suspension.   When this happens, the solid material flows out into the leach field and clogs it up.  Chemical additives, yeast, baking soda, and other additives do not help your septic system and can be harmful to the system.

The best way to keep a septic system healthy and working well is to have it regularly inspected and pumped out.  An inspection every two to three years and septic tank pumping every three to five years is an effective way to keep a septic system in good working order.

Keeping Your Septic System Healthy

With a little care, a properly sized and installed septic system can give many years of great service.  Abusing the septic system will cause it to fail early and require frequent expensive maintenance.  Here are a few tips for keeping your septic system in top operating condition.

Probably the most important thing you can do for your septic system is to have it regularly inspected and pumped.  Septic tank pumping should be done every three to five years for the best, longest lasting results.  Over time, waste materials accumulate in a septic tank and if the accumulation is not periodically pumped out, they will cause the system to fail which will require very expensive repairs or replacement of the septic tank or septic field.  You can avoid this problem with regular septic tank pumping.

A septic tank inspection every two or three years is also a good idea.  Often, you can coordinate an inspection with a septic tank pumpout.  Frequent inspections can catch minor issues before they become a major concern.  Also, an inspection will reveal whether the septic tank needs to be pumped or if it can wait for another year or two.

Be conservative in your water usage.  Septic systems are designed to handle an average amount of water flow for a given house size.  A sudden increase in water usage can overwhelm a septic system.

Similarly, try to limit the type and quantity of any materials you flush down the drain.  Paints, caustic chemicals, food scraps, grease, and other such materials in small amounts are OK, but large volumes of these materials or regularly pouring them down the drain will shorten the useful life of your septic system.