How To Fill In a Cesspool in 5 DIY Steps

Cover the mess without the stress

A cement cesspool in a yard
Photo: psisa / iStock / Getty Images Plus / Getty Images
A cement cesspool in a yard
Photo: psisa / iStock / Getty Images Plus / Getty Images
Christopher Savage
Contributing Writer
Updated November 22, 2023
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Are you ready to tackle that old cesspool head-on? The good news is you can do it on your own. Read on to learn what safety gear and tools you’ll need as well as the local rules around filing in cesspools. From digging it out to managing the waste, we've got you covered whether you're in it for the eco-friendly vibe or just reclaiming your backyard.

Why Filling In Your Old Cesspool Is Important 

Filling in that old cesspool is about more than tidying up. For starters, forgotten cesspools are like ticking environmental time bombs. They can leak nasty stuff into the groundwater, affecting water quality and health. 

Have you ever thought about the gasses neglected cesspools can belch out? It's not great for the air you breathe. Plus, they're accidents waiting to happen. Imagine a collapse or someone taking an unexpected dive down the cesspool hole! 

By giving old cesspools a proper send-off, you’re not just cleaning up but also looking out for your health, safety, and the planet.

How To Prep for a Cesspool Filling

Filling in an old cesspool is a very smart move—as we may have mentioned above—and doing some straightforward prep can make the DIY process a bit easier. With safety, compliance, and the right tools, you'll be on your way to a successful project.

  • Gather safety tools: Gloves, boots, and eye protection are a must. If gasses are present, a gas monitor is also necessary for a safe working environment.

  • Gather your tools and equipment beforehand: This will streamline the excavation and filling tasks and minimize the risk of delays and complications.

  • Get some clean fill material: Gravel or soil are great as filling for the cesspool.

  • Confirm local regulations: Permits may be required for cesspool filling compliance. 

  • Plan for disposal of waste materials: Some may be recyclable, while others require professional disposal.

  • Identify and mark underground utilities: Avoid accidental damage during excavation by knowing where your utilities are located.

How To Fill in Your Old Cesspool

A man opening a cesspool
Photo: Natalia Kokhanova / iStock / Getty Images Plus / Getty Images

Whether you're motivated by environmental concerns or regulatory compliance or just want to reclaim your space, careful planning is required if you’re planning on filling in your cesspool on your own. Follow the five steps below to address each phase of a cesspool closure so you can easily navigate the process.

1. Debris Removal and Excavation

Begin the cesspool filling process by meticulously clearing out any debris and excavating the designated area. 

  • Use tools such as a pickaxe and shovel to break down and remove solid materials. 

  • Then, transport the debris away using a wheelbarrow for a clutter-free and safe work environment.

2. Fill Gradually and Compress

With the cesspool prepped and cleared, add the chosen fill material—gravel, soil or a combination—deliberately and gradually. The key is to layer the fill material, compacting each layer with precision using a compactor. This slow approach minimizes the risk of future settling issues, establishing a robust foundation for the filled area.

3. Thorough Compaction and Leveling

Compressing soil with a compactor
Photo: photovs / iStock / Getty Images Plus / Getty Images

Compaction should be done with extra care to ensure a solid and stable result. Use the compactor after each layer of fill is added. 

The goal is not only to prevent settling but also to create a level surface. This step is critical for the filled area's stability and long-term resilience.

4. Surface Leveling

Level each filled area using tools such as a rake. Pay attention to any variations and make adjustments so there isn’t any sloping.

5. Cover and Landscaping

Once the cesspool is adequately filled and leveled, turn your attention to the finishing touches. 

  • Cover the filled area with topsoil or an appropriate material and level it one more time. 

  • Consider incorporating landscaping elements, such as planting grass or other vegetation, to reclaim the space and contribute to environmental sustainability.

DIY vs. Hiring a Professional

Filling in a cesspool can be a DIY job, but the process can involve tricky stuff like digging, waste management, and navigating regulations. 

Opting for a professional contractor when filling in your cesspool also makes a lot of sense. Pros have the right gear to get jobs like this done quickly, reducing the chance of hiccups. It's like outsourcing the headache so you can kick back and relax, knowing your cesspool is in capable hands. Hiring a septic contractor near you guarantees a hassle-free job.

Frequently Asked Questions

The cost of filling a cesspool can vary widely based on location, size, accessibility, and local regulations. It may range from $3,000 to $10,000 on average. 

Obtaining quotes from local contractors is advisable, considering specific site conditions and potential permits or waste disposal costs. Consulting with professionals will provide a more accurate estimate tailored to your circumstances.

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Learn more about our contributor
Christopher Savage
Contributing Writer
Chris is an accomplished writer with over 10 years of experience. He has written for clients in the furniture retail, mattress, and landscaping industries, to name a few, including The Brick and GoodMorning.com.
Chris is an accomplished writer with over 10 years of experience. He has written for clients in the furniture retail, mattress, and landscaping industries, to name a few, including The Brick and GoodMorning.com.
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