The Importance of Preventative Maintenance on Septic Tank Filters

Often, we receive calls from customers who’s septic system is malfunctioning.  This is largely due to a “if it ain’t broke don’t fix it” attitude about the septic system and in some cases results in extremely expensive repairs. Many of these emergencies can be avoided by preventative maintenance on the septic tank filter, which is the last line of defense for drain field protection.

Modern septic tanks are equipped with a filter installed in front of the drain field. The purpose of the septic tank filter is to prevent solids from entering your drain field which could back up your system; an early warning sign of this is odor coming out of drains. Any solid blocking the drain field will not allow the septic system to function properly and a clogged septic tank filter can cause your entire wastewater plumbing to back up and stop flowing.

While having your home’s septic system clogged will require a maintenance pump and filter cleaning a failed drain field will require major repairs. A failed drain field will mean extensive cleaning, at a minimum, or possibly the need for an entirely new drain line.

Cleaning or replacing a drain field will be far more costly than a preventative maintenance septic tank pump including cleaning or replacing your filter. Regular maintenance will save you money in the long term.

Filter Diagram

Filter in Operation

In the image above, we can see a septic tank filter placed within the outlet “T”. To access the filter, we excavated the septic tank, and removed the septic tank lid.

Pulled Filter Ready for Cleaning

Once the septic tank filter was pulled, we were able to clean and replace the filter. This septic tank system was relatively new, and the homeowners are extremely careful about what they allow down their drains. In some cases, the filter will need complete replacement if the system has not been maintained with regularity.

Again, regular maintenance is the key to a healthy septic system and will prolong the life of your system, including your drain field. As the saying goes “an ounce of prevention is worth a pound of cure”. This saying is definitely applicable to septic systems. Regular pumping of your septic tank and keeping the filter clean can prevent emergencies before they ever start!

Looking to get your septic system checked out or pumped? Call us at (404) 535-7582 or visit to get your free quote today.