Septic Tank Filter: Functions, Types & Replacement

In this article, we’ll be discussing the types of septic tank filters, the filtration system, and filter replacement as well as how to clean your septic filter among others.

A septic system has a variety of components that all contribute to its smooth functioning. All of these parts play a vital role and cannot be overlooked or ignored. Here, we’ll be looking at one of such components; the septic tank filter.

The filter is basically a plastic device that is installed within the outlet baffle of the tank. What it does is to prevent or keep solids from leaving the septic tank into the drain field. Without the septic tank filter, you’re likely to face a difficult challenge dealing with plugging of your leach lines.

Here, it’s evident that ignoring certain components of your septic system, however little leads to greater problems.

Advantages Of Septic Tank Filters

There are lots of benefits attached to septic tank filter use.

First, this device or septic tank component is easy to install. Most will just need to be pushed into the outlet pipe. Just like its ease of installation, septic tank filters are also easy and economical to maintain.

It provides a highly efficient and effective filtration for solids. Even hair, toilet paper, and lint are unable to escape to your drain field. It’s common knowledge that these filters can be washed out.

More important is the fact that they’re quite cheap to replace.

Septic tank filters can be used in a wide range of settings. This includes residential and commercial among other applications. You won’t have to be changing your septic tank filter frequently as it’s designed to be last long.

Types of Septic Tank Filter

When it comes to septic tank filters, there are basically three types. Each is designed to perfectly fit a given operational situation. The type of septic tank filter you use depends on the septic system you operate.

To know what filter to use, you need first understand the different types and what situation perfectly fits their use. The three types of septic tank filters are gravity filters, pressure filters, and vent pipe odor eliminator.

Let’s discuss these further as follows;

  • Gravity Effluent Filters

These types of filters are designed for use in septic tanks that gravity-flow into a drain field or other secondary wastewater treatment system. Under this type of filter is a wide variety of sizes that fit all types of applications.

To have one installed, the size of your septic tank among other factors will need to be taken into consideration.

  • Pressure Effluent Filters

 As the name suggests, pressure effluent filters are designed to filter effluent under pressure. So, what supplies such pressure?

A submersible pump! Certain types of septic systems require pumps to move septic effluent to different parts of an onsite treatment system.

To ensure that only effluent flows, pressure filters will need to be installed. Such effluent may be pumped through the filter into a mound system or other secondary wastewater treatment system.

Like gravity effluent filters, pressure filters come in different sizes and designs. There are newer innovations that enhance the longevity and ease of maintenance of this category of septic tank filters.

  • Vent Pipe Odor Eliminator

A vent pipe odor eliminator is yet another type of septic tank filter built to dispel odor. The name alone speaks volumes about what they do. You’ll find this in different sizes ranging from 1.5”, 2”, and 3 to 4” etc.

The type you need will is determined by the type of tank you have.

Cleaning A Septic Tank Filter

Maintenance is key to the smooth operation of a septic tank filter. As such, you’ll need to perform a clean up to get rid of possible clogs. If you consider this as being too much of a task, consider calling for professional help.

To perform this cleanup, simply unscrew and open your tank. Extra caution should be exercised to avoid exposure to septic tank gases.

Next, the filter should be removed from the baffle. It’s best to put on protective gloves for this task.

Now, remove the filter with your hands (if it’s within reach) or with a rake or other appropriate tools. Check for possible damage. If damaged, a replacement will be necessary.

When in perfect condition, the filter should be hosed with water to remove excess waste.

Septic Tank Filter Replacement

As time goes on, the condition of a septic tank filter deteriorates. This is despite any periodic cleaning maintenance you perform. Such filters won’t be able to hold up or perform efficiently.

When this is noticed, a replacement will be necessary.

  • Reasons for Replacement

There are several reasons why a septic tank filter should be replaced.

First, it improves your system’s efficiency; secondly, it improves the lifespan of your septic system. What more? A septic tank filter will help prevent unexpected issues from ever happening as long as it’s in good working condition.

You also get to save yourself money on septic system repairs and replacements occasioned by a malfunctioning filter. More importantly, your pipes and leach field are protected from clogging.

  • How Often Should A Septic Tank Filter Be Replaced?

To ensure your septic tank filter performs optimally, you’ll need to have an idea of how frequently it should be replaced. The replacement time or frequency isn’t set in stone.

In other words, there’s no definite time to replace a septic tank filter.

The need for replacement is largely determined by the number of users or household members, and the filter manufacturer (certain brands tend to be more durable than others). Whatever the case is, a septic tank filter should be replaced once 3 to 5 years.

This is as often as you’d have your septic tank pumped.

Ensure that when your septic tank is being professionally pumped, a new septic filter replacement is made. Septic tank filters are quite cheap and won’t cost much to replace. It’s better to avoid the possibility of a malfunctioning filter.

These are important details about septic tank filters. We’ve discussed how well they function as well as how best to maintain them. As discussed, certain maintenance tasks may involve or require replacement.

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