top of page
Writer's pictureDavid Campbell

What Is The Average Cost Of Emptying A Septic Tank

How Much Does It Cost To Empty A Septic Tank? A Comprehensive Guide

Septic tanks are essential for homes and businesses not connected to a municipal sewer system. One critical aspect of maintaining a septic system is regular tank emptying. But how much does it cost to empty a septic tank? In this detailed guide, we'll cover everything from septic system installation to the costs and factors involved in emptying and maintaining your tank. Whether you're new to septic systems or looking for more information, this article will provide you with the insights you need.

How Much Does It Cost To Empty A Septic Tank

What Is Septic System Installation?

A septic system is an underground wastewater treatment system commonly used in rural areas where there are no centralized sewer systems. It consists of a septic tank and a drain field. Here's a breakdown of the installation process:


  1. Site Evaluation: Experts assess the soil, landscape, and local regulations to determine the best location for the septic system. This step is crucial as it ensures that the septic system will function properly and meet all local health and environmental standards.

  2. Designing the System: A blueprint is created, detailing the size and layout of the septic tank and drain field. The design must accommodate the expected wastewater load and account for soil absorption rates.

  3. Permits and Approvals: Necessary permits are obtained from local health departments or environmental agencies. This step ensures that the installation complies with all local, state, and federal regulations.

  4. Excavation and Installation: The site is dug, the septic tank is placed, and it's connected to the drain field. Proper installation techniques are essential to prevent leaks and ensure the system's longevity.

  5. System Testing: The system is tested to ensure it's properly installed and functioning before being covered up. This includes checking for leaks, verifying the correct flow of wastewater, and ensuring that the drain field is properly absorbing effluent.


The cost of installing a septic system can vary significantly depending on the size of the tank, soil conditions, and local regulations.


Average Cost of Septic Tank Emptying

Emptying your septic tank regularly is crucial to prevent overflows and system failures. The cost of emptying a septic tank depends on the size of the tank, the time it takes to empty, and any additional VAT charges. Here’s a detailed breakdown:

Size of Tank

Time to Empty

Cost + VAT (Range low - high)

Small Septic Tank

30 minutes

£150 - £200

Medium Septic Tank

1 hour

£200 - £300

Large Septic Tank

1.5 hours

£300 - £400

Extra Large Tank

2 hours

£400 - £600

Small Septic Tank Cost

Small septic tanks, typically up to 1,000 gallons, are suitable for smaller households or properties with minimal wastewater output. Emptying a small septic tank usually costs between £150 and £200. These tanks need to be emptied more frequently, especially if they serve a household with higher-than-average water usage.


Medium Septic Tank Cost

Medium-sized tanks, holding between 1,000 and 2,000 gallons, are common for average-sized homes. The cost for emptying these tanks ranges from £200 to £300. These tanks strike a balance between capacity and maintenance frequency, making them ideal for standard family homes.


Large Septic Tank Cost

Large tanks, which can hold 2,000 to 3,000 gallons, are often used for larger homes or small commercial properties. Emptying a large septic tank can cost between £300 and £400. These larger tanks can handle more waste but still need regular maintenance to prevent issues.


Extra Large Septic Tank Cost

Extra large septic tanks, typically over 3,000 gallons, are used in larger commercial properties or multi-family residences. The cost to empty these tanks ranges from £400 to £600. These tanks can handle significant waste volumes but require specialized equipment and expertise for proper maintenance.


How Often Should a Septic Tank Be Emptied?

The frequency of septic tank emptying depends on several factors, including the size of the tank, the number of people in the household, and water usage habits. Generally, it is recommended to empty a septic tank every 3 to 5 years. However, smaller tanks or larger households may require more frequent emptying, perhaps every 1 to 2 years. Regular inspections can help determine the optimal emptying schedule for your specific situation.

How Often Should a Septic Tank Be Emptied

What Are the Steps of the Septic System Process?

Understanding how a septic system works can help you maintain it properly. Here are the key steps:

  1. Wastewater Collection: Wastewater from the house flows into the septic tank. This includes water from toilets, sinks, showers, and washing machines.

  2. Separation of Solids and Liquids: In the tank, solids settle to the bottom, and oils and grease float to the top. The middle layer of liquid (effluent) flows out to the drain field.

  3. Anaerobic Digestion: Bacteria in the tank break down solid waste. This natural process reduces the volume of solids and converts them into simpler compounds.

  4. Effluent Discharge: The liquid effluent flows into the drain field. This is usually a series of perforated pipes buried in trenches filled with gravel.

  5. Soil Filtration: The soil in the drain field filters and treats the effluent before it returns to the groundwater. This step is crucial for protecting local water supplies and ensuring that the treated wastewater is safe for the environment.


What to Use to Clean a Septic Tank?

Cleaning a septic tank involves using specific tools and sometimes additives to ensure proper maintenance. Here are some recommendations:

  1. Professional Pumping Services: Always hire professionals to pump and clean your septic tank. They have the necessary equipment and expertise to handle waste safely and efficiently.

  2. Biological Additives: Use biological additives to help break down waste and maintain bacterial balance. These products can enhance the natural bacterial action in the tank, helping to prevent clogs and odors.

  3. Avoid Harsh Chemicals: Do not use bleach, disinfectants, or other harsh chemicals as they can kill beneficial bacteria in the tank. These chemicals can disrupt the natural treatment process and lead to system failures.


Factors Affecting the Cost of Septic Tank Emptying

Several factors can influence the cost of septic tank emptying:

  1. Tank Size: Larger tanks require more time and resources to empty, increasing the cost.

  2. Location: Remote locations may incur additional travel charges. Accessibility issues, such as a tank located in a hard-to-reach area, can also add to the cost.

  3. Accessibility: Tanks that are difficult to access may require special equipment, adding to the cost. Clear access paths can reduce the overall expense.

  4. Frequency: Regular maintenance can reduce the overall cost compared to emergency emptying. Emergency services tend to be more expensive due to the urgency and additional resources required.

  5. Additional Services: Inspections, repairs, or enzyme treatments may incur extra charges. Regular maintenance can help identify potential issues early, saving on more costly repairs in the future.


Cesspit Emptying Cost

A cesspit, unlike a septic tank, does not treat waste but simply stores it. Here's an estimated cost breakdown for emptying a cesspit:

Size of Cesspit

Estimated Cost

Small Cesspit

£150 - £250

Medium Cesspit

£250 - £400

Large Cesspit

£400 - £600

Cesspits require more frequent emptying than septic tanks since they do not process the waste. This can lead to higher ongoing maintenance costs.


Septic Tank to Sewer Conversion Cost

Converting from a septic tank to a sewer system involves several steps, including disconnecting the septic system, connecting to the municipal sewer, and potentially decommissioning the old septic tank. Here’s a detailed breakdown of the conversion process:

  1. Disconnecting the Septic System: This involves safely decommissioning the septic tank and ensuring that no wastewater flows into it.

  2. Connecting to the Municipal Sewer: This step requires installing a new pipeline from your property to the nearest sewer connection. It may involve trenching and other groundwork.

  3. Decommissioning the Septic Tank: The old tank is either removed or filled with sand or gravel to prevent collapse.


The cost for this conversion typically ranges from £3,000 to £7,000, depending on the complexity of the project and local sewer connection fees. Factors like the distance to the sewer line, excavation requirements, and local permit costs can significantly affect the total expense.


How Much Does a Septic Tank Sewage Treatment Plant Cost?

Installing a sewage treatment plant can be a more sustainable and long-term solution compared to a traditional septic tank. These systems treat wastewater more effectively and can be suitable for areas with stricter environmental regulations. Here's a breakdown of the costs involved:


  1. Small Sewage Treatment Plant: £7,000 - £10,000. Suitable for single-family homes or small properties.

  2. Medium Sewage Treatment Plant: £10,000 - £12,000. Ideal for larger homes or small commercial properties.

  3. Large Sewage Treatment Plant: £12,000 - £15,000. Used for multi-family residences or larger commercial operations.


These costs include the system itself, installation, and necessary permits. The long-term benefits include lower maintenance costs and improved environmental impact.

Septic Tank Installation Cost

Septic Tank Installation Cost

The cost of installing a septic tank can vary significantly based on factors like tank size, soil conditions, and local regulations. Here’s a detailed breakdown:

System Size

Estimated Cost

Small System

£3,000 - £5,000

Medium System

£5,000 - £10,000

Large System

£10,000 - £15,000

Extra Large System

£15,000 and above

Factors affecting the installation cost include the complexity of the site, local permit fees, and any additional features like advanced treatment options.


Pros and Cons of Emptying the Septic Tank


Pros

  1. Prevents Overflows: Regular emptying prevents system overflows and backups, which can cause significant property damage and health hazards.

  2. Increases Lifespan: Proper maintenance can extend the lifespan of your septic system, protecting your investment.

  3. Improves Efficiency: An emptied tank operates more efficiently, reducing the risk of failures and ensuring smooth operation.

  4. Avoids Costly Repairs: Regular maintenance helps identify and fix small issues before they become major problems, saving money in the long run.


Cons

  1. Cost: Regular maintenance can be expensive, especially if frequent emptying is required.

  2. Disruption: Emptying the tank can be disruptive to household routines, particularly if the system is located close to living areas.

  3. Smell: The process can produce unpleasant odors, although these are usually temporary.


Conclusion

Maintaining your septic system, especially regular emptying, is crucial for its efficient operation and longevity. Understanding the costs associated with septic tank emptying and the factors influencing these costs can help you budget effectively and avoid unexpected expenses. Regular maintenance and professional servicing are key to a long-lasting and efficient septic system.


FAQ

Do You Have To Empty A Septic Tank?

Yes, regular emptying is necessary to prevent backups and maintain system efficiency. Ignoring this can lead to costly repairs and health hazards.


What Happens If A Septic Tank Isn't Emptied?

If not emptied, solids can build up and clog the system, leading to overflows, backups, and potential system failure. This can cause damage to your property and contamination of local water sources.


What Type Of Cleaners Are Safe With A Septic Tank?

Use biodegradable cleaners that do not contain harsh chemicals to maintain the health of your septic system. Avoid products with bleach, ammonia, or other strong chemicals.


What Toilet Paper Is Safe For A Septic Tank?

Septic-safe toilet paper that dissolves easily is recommended to avoid clogs and system damage. Brands labeled as "septic-safe" are designed to break down more efficiently.


How Long Does A Septic Tank Last?

With proper maintenance, a septic tank can last 20 to 40 years or more. Regular inspections and timely emptying are crucial for extending the system's lifespan.


Can I Empty My Own Septic Tank?

While it's possible, it is not recommended. Professional services have the necessary equipment and expertise to handle the waste safely and efficiently. Attempting to empty your own tank can be hazardous and is often against local regulations.


Are Sewers Better Than Septic Tanks?

Sewers can be more convenient and often require less maintenance, but septic systems can be more cost-effective and environmentally friendly in rural areas. The choice depends on your location, budget, and environmental considerations.


In conclusion, knowing how much it costs to empty a septic tank and the factors that affect this cost can help you maintain your system effectively and avoid costly repairs or replacements. Regular maintenance and professional servicing are key to a long-lasting and efficient septic system.

10 views0 comments
bottom of page