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3 Benefits of Drainfield Bioremediation

A septic tank
All septic systems contain a network of buried pipes to distribute waste water into the soil of your drainfield. Over time, many drainfields develop the phenomenon known as biomat, which involves the formation of a jelly-like sludge that prevents waste water from dispersing correctly. This serious issue may lead to swampy lawns and backed up systems.

Fortunately, septic system professionals can often eliminate problematic biomats through the technique known as bioremediation. Yet many homeowners fail to understand the basic principles of this technique. If you would like to learn more about drainfield rehabilitation, keep reading. This article outlines three key benefits of bioremediation.

1. Less Expensive and Invasive Than Drainfield Replacement

Biomats form as the the result of improper drainage. When the drainfield becomes overly saturated with waste water, beneficial aerobic bacteria can no longer survive. Instead, anaerobic bacteria take up residence, forming slimy biomats out of the half-digested organic waste. Such biomats can eventually clog up your drain pipes entirely.

Traditionally, those faced with extensive biomat problems had only one possible solution: replacing their drainfield entirely. In other words, a contractor would have to excavate the entire network of drain pipes and replace them with new ones. In addition, this method of rehabilitation often requires the placement of new soil.

As you can imagine, this process has a highly invasive nature and involves tearing up much of your lawn. Not only that, but traditional drainfield replacement tends to come with an incredibly high cost, being both labor- and material-intensive. Bioremediation allows you to avoid both the invasion and the expense of traditional drainfield replacement.

Different bioremediation systems have different price points with respect to an outright replacement. That said, certain systems may end up costing as much as 50 percent less than a complete drainfield replacement. Moreover, bioremediation solves your drainfield problems with a minimal amount of landscape disturbance.

2. Clears Up Drainfields in as Little as Two Weeks

As noted above, a biomat turns what should be an aerobic environment into an anaerobic one. The resulting layer of slime further exacerbates the problem by making it harder for waste water to percolate into the soil. If drainage rates slow down enough, your system stands a far greater chance of backing up and overflowing.

Bioremediation deals with the problem by reintroducing aerobic bacteria into the system. A special air pump delivers oxygen to your septic tank, which the contractor also seeds with aerobic bacteria. As these bacteria - and the oxygen they need to survive - flow out into your drainfield, they start breaking down the organic matter of the biomat.

The speed at which the bioremediation works depends on the size of your drainfield and the extent of the biomat problem. That said, many bioremediation systems can restore drainfield performance within as little as two weeks.

3. Restores Proper Drainfield Equilibrium

Replacing a drainfield entirely may solve the problem for a while - maybe even for several years. Yet the circumstances that lead to the biomat forming in the first place can easily affect the new drainfield just as well, meaning you may face the same situation again before you know it.

Bioremediation offers an effective, long-term solution to the problem of biomat formation. To begin with, the aerobic bacteria introduced to the system digest the existing mat completely,

thus resolving the source of the drainage problem. As the soil around your drain pipes becomes less hydrated, aerobic bacteria can then take up permanent residence once more.

This soil rehabilitation greatly reduces the likelihood that the problem will recur. And because the aerator continues to oxygenate the waste in your septic tank, aerobic bacteria can survive if even the drainfield becomes excessively waterlogged at times.

Bioremediation offers a low-impact, long-term, and environmentally friendly way to deal with biomats. For more information about whether bioremediation can solve your septic problems, please contact Northeast Alabama's experts at Economy Septic Tank Service.