Can I Fill My Pool With Dirt?
The short answer is no, not properly. Here is what actually happens when you fill a pool with plain dirt, what the right approach looks like, and why the difference matters more than most homeowners realize.
You can physically put dirt in a pool. What you cannot do is fill a pool with plain dirt and expect the result to behave like solid ground. Without proper demolition, drainage, engineered fill, and compaction, the filled area will settle, sink, drain poorly, and become a problem that is expensive to fix. Done correctly, a filled pool is indistinguishable from the rest of your yard. Done wrong, it announces itself within a few years.
This is one of the most common questions people ask when they start researching pool removal, and it makes complete sense. A pool is essentially a very large hole. Dirt fills holes. So why not just fill it with dirt and call it done?
The answer comes down to three things: what the dirt does over time, what happens to water underneath it, and what your municipality requires before you can legally call the job finished. Let me walk through each one honestly, because I have a background in construction and real estate and this is exactly the kind of detail that separates a job done right from a job done cheap.
What Happens When You Fill a Pool With Plain Dirt
Dirt is not a stable structural material when used as backfill in large volumes. When you dump loose soil into a pool-sized cavity, several things happen over the following years that you cannot see until they become a visible problem.
First, the soil settles. Uncompacted fill compresses under its own weight and under the weight of anything on top of it. A pool that was filled with loose dirt will show visible settling within two to five years in most climates. You will notice depressions forming where the pool used to be. In freeze-thaw climates, that settling accelerates because water infiltrates the fill, freezes, expands, and creates voids as it melts. In wet climates, uncompacted fill becomes waterlogged and soft.
Second, drainage fails. A proper pool fill-in includes drainage provisions specifically because the pool shell itself creates a waterproof barrier. Without drainage holes punched in the floor and drainage aggregate near the bottom, rainwater that enters the fill has nowhere to go. It pools underground, saturates the fill, and creates a perpetually wet area that grows grass poorly and sometimes pushes water toward the foundation of the house depending on the grade.
Third, the fill material itself matters. Topsoil, which is what most people think of when they think of dirt, is actually one of the worst backfill materials for this application. It is high in organic content, compresses significantly over time, retains water, and breaks down. What you want for structural backfill is clean granular fill with low organic content, applied in controlled lifts and mechanically compacted.
Contractors who quote significantly below market rate for pool fill-in almost always cut corners in one of three places: fill material quality, compaction, or drainage. These are the three things you cannot see once the ground is graded and seeded. The consequences show up two to five years later when the yard starts sinking and you are paying someone else to fix what the first contractor did wrong. Always ask specifically what fill material will be used and how compaction will be performed before signing anything.
What Proper Pool Fill-In Actually Looks Like
A properly executed partial pool removal, also called a fill-in, follows a specific sequence that is quite different from simply pushing dirt into a hole. Here is what the process looks like when it is done correctly.
Demolish the top portion of the pool walls
The top 18 to 24 inches of pool walls are broken up and removed. This prevents a ledge from forming underground that could cause issues with settling and future construction. The broken material is either hauled away or used as part of the base fill in some cases, depending on the contractor’s approach and local requirements.
Punch drainage holes in the pool floor
Multiple drainage holes are punched through the pool floor before any fill goes in. This is non-negotiable. Without drainage holes, water that enters the fill has nowhere to escape and the filled area becomes a buried reservoir. The holes allow water to percolate down through the existing soil beneath the pool shell.
Place drainage aggregate at the base
Gravel or crushed stone is placed at the bottom of the fill area around and above the drainage holes. This creates a drainage layer that channels water toward the holes rather than letting it sit in the fill material above.
Backfill with engineered fill in compacted lifts
Clean granular fill is added in layers of 8 to 12 inches at a time. Each layer is mechanically compacted before the next layer goes in. This is the most important part of the process and the most commonly skipped by contractors trying to work cheap. Proper compaction in lifts is what prevents settling. It takes longer and costs more than dumping fill in all at once. It is also the difference between a yard that holds and one that sinks.
Top with quality soil and grade properly
The final 12 to 18 inches use quality topsoil suitable for planting. The surface is graded to match the surrounding yard and slope away from the house. Seed or sod finishes the job. Within one growing season a properly filled pool is visually indistinguishable from the rest of the yard.
Dirt vs. Proper Fill: Side by Side
Just Dumping Dirt In
- No wall demolition
- No drainage holes in the floor
- No drainage aggregate layer
- Uncompacted fill settles over time
- Visible depressions within 2 to 5 years
- Drainage problems in wet weather
- No permit, no inspection, legal exposure
- Problem at resale — disclosure required
- Cheap upfront, expensive to fix later
Proper Engineered Fill-In
- Top 18 to 24 inches of walls demolished
- Drainage holes punched in pool floor
- Gravel drainage layer at base
- Clean fill compacted in 8 to 12 inch lifts
- Stable surface that holds through freeze-thaw
- Proper drainage in all weather conditions
- Permitted and inspected
- Disclosed correctly at resale
- Done right once, no corrective work later
The Permit Question You Cannot Skip
Regardless of whether you fill the pool yourself or hire someone to do it, pool demolition requires a permit in virtually every municipality in the United States. This is not optional and it is not bureaucratic overhead. The permit and required inspection protect you in two concrete ways.
First, the inspection ensures the drainage and compaction work was actually done correctly before the ground is graded and seeded. Once the surface is finished you cannot see what is underneath. A permit inspection creates a record that the work was done to code.
Second, the permit protects you at resale. Most states require disclosure of pool removal when selling. An unpermitted fill-in creates a legal exposure that can complicate or derail a transaction. A permitted and inspected fill-in is documented, defensible, and far less likely to create problems when a buyer’s attorney or inspector asks questions.
A contractor who suggests skipping the permit is not saving you money. They are saving themselves time and transferring the risk to you.
Should You Fill In or Fully Remove?
Filling in a pool, done correctly, is a legitimate option for many homeowners. It costs less than full excavation, typically running $5,000 to $12,000 versus $12,000 to $28,000 for full removal, and it produces a solid, usable yard when executed properly.
The trade-offs are real though. Most states require disclosure of partial removal when selling. You cannot build a permanent structure over the filled area. And the long-term performance depends entirely on the quality of the fill work, which you cannot evaluate once it is buried.
Full removal gives you a yard with no buried structure, no disclosure requirements, and no restrictions on future use. The additional cost is significant but often recovered through the cleaner transaction it produces at resale. For most homeowners who are thinking about selling in the next decade, full removal is worth the investment.
For a complete comparison of costs and trade-offs, visit our Pool Removal Cost Guide. And if you want to understand the full process before talking to anyone, our Pool Removal FAQ covers every practical question in detail.
Can I fill my pool myself to save money?
Technically yes, but practically almost never advisable. Proper pool fill-in requires specific equipment for compaction, knowledge of local permit requirements, drainage engineering, and the kind of sequential inspection process that is difficult to manage without construction experience. Homeowners who attempt DIY fill-in almost always skip or shortcut the compaction process, which is exactly what causes the settling problems that make the job expensive to fix later. The cost of a properly permitted professional fill-in is almost always worth it compared to the cost of correcting a DIY job done wrong.
How long does it take to fill in a pool?
A properly executed partial fill-in typically takes two to four days of physical work once permits are in hand. The permit process itself can take one to six weeks depending on your municipality. The total timeline from starting the permit process to finished yard is typically three to eight weeks. Our Pool Removal FAQ covers timing in detail.
What can I put in place of my pool after it is filled in?
Lawn, garden beds, a patio, a fire pit area, a play area for kids, or native landscaping all work well over a properly filled pool. The one thing you cannot do over a partial fill-in is build a permanent structure with a foundation, since the filled area does not have the load-bearing capacity of undisturbed soil. Full removal removes that restriction entirely.
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