Septic Tank Filters & Your Drain Field

With the invention of septic tank filters their came a significant improvement in the operation as well as longevity of the septic system. so much so that some States such as Arizona made it mandatory that septic tank filters should be installed on all new septic tank installations. For additional reading please see MEDIA FILTER SEPTIC SYSTEMS for septic designs that pose a problem.

There are several variations of septic and waste water filters that can be found on the market however the most basic is the septic effluent filter. This basic effluent filter is a tee and filter that is installed at the septic outlet. The installation must be done by a septic contractor or skilled home owner. It cost less than $100.00

Where A Septic Tank Filter Is Installed

Simple septic filters such as washing machine filters, grey water filters and effluent filters are all designed so to protect the effluent absorption field/ leech field. The septic filter is placed either at the outlet tee, in the septic tank, or in a separate chamber outside the septic tank.

Graywater filters are generally placed at the inlet to the drywell or graywater disposal system. Washing machine filters are installed at the outlet hose.

In contrast to graywater and septic effluent filters, media filter septic systems use a conventional septic tank along with several methods to further treat and filter the septic effluent after which it is then discharged into the soil, waterway or soil surface.

The septic effluent filter protects the leach field from clogging.

To offer added protection to the septic absorption system, you should add a greywater or septic effluent filter at the septic tank or outlet tee.

If there is not enough room to install this filter they you can opt to install a small filter and chamber outside of the septic tank however it should be done upstream from the drain field.

Even though most large solids and grease which enters the septic system is usually retained where they then turn to floating scum at the top of the tank or settled sludge at the bottom. The effluent of the septic system generally contains smaller particles suspended solids and debris when passed through the soil absorption increase the rate at which the absorption system clog thus reducing its life span.

Trapping these suspended solids in the we pass clarified septic effluent to the absorption system increases its lifespan. You should not worry about starving the biomat when filtering septic effluent, as there is still a large amount of nutrients which pass into the absorption system.

There are many companies which sell such devices which will increase the life of your drain field as they reduce the level of suspended solids which leave the tank.