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How Often Does My Septic Tank Need To Be Replaced?

March 10, 2023

Septic tanks are an essential component of many homes and buildings that aren't connected to the municipal sewer system. They help to collect, treat and dispose of wastewater in a safe and efficient manner. However, like all things, septic tanks have a lifespan and eventually, they need to be replaced. In this blog post, we’ll discuss how long septic tanks typically last, signs that indicate it's time for a replacement and whether they can be repaired.

A Newly Installed Septic Tanks — Plumber in Northern Rivers

How Long Does A Septic Tank Last?

The lifespan of a septic tank can vary depending on a few factors, such as the type of tank, the materials used in its construction and the level of maintenance it receives. Generally, a well-maintained septic tank can last for 25 to 30 years, and in some cases, even longer. However, if a septic tank is not maintained properly, it can fail prematurely.

What Are The Signs For A Septic Tank Replacement?

If you’re experiencing any of the following signs, it may be time to replace your septic tank:

Foul Odours: If you smell sewage in your yard or near the septic tank, it's a sign that the tank is not functioning properly.
Slow Drains: If your sinks, showers and toilets are draining slowly or backing up, it's a sign that the septic tank is not draining properly.
Pooling Water: If you notice water pooling in your yard near the septic tank, it could indicate that the tank is full or leaking.
Green Grass: If the grass around your septic tank is unusually green, it could mean the tank is leaking and fertilising the surrounding area.
Age: If your septic tank is over 25 years old, it's a good idea to have it inspected to see if it's time for a replacement.

Can My Septic Tank Be Repaired?

In some cases, a septic tank can be repaired instead of replaced. For example, if the tank is leaking or cracked, it may be possible to repair it with a patch or sealant. However, if the tank is too old or damaged beyond repair, it will need to be replaced.

It's important to note that repairs to a septic tank are not always a long-term solution. If the tank is repaired and continues to experience issues, it may need to be replaced in the near future.

How To Maintain Your Septic Tank To Extend Its Lifespan

Regular maintenance is key to extending the lifespan of your septic tank. To maintain your septic tank, consider the following:

Pump your septic tank regularly.
Conserve water to avoid placing strain on your septic system; fix leaks, install low-flow toilets and showerheads and don't run the dishwasher or washing machine unless they're full.
Don't flush non-biodegradable items.
Avoid using harsh chemicals.
Plant trees and shrubs away from your septic system.

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