To level an above ground pool, you typically put down a base layer of compacted material, often sand, a pool pad, or a combination of both.
Preparing the Base for Your Above Ground Pool
A stable and level base is crucial for the longevity and safety of your above ground pool. Here's a breakdown of common materials and methods:
1. Removing the Topsoil
First, remove all grass and topsoil from the area where the pool will be placed. Topsoil is too soft and organic, which will cause it to decompose and settle unevenly over time, compromising the pool's level surface.
2. Leveling the Ground
- Equipment: Use a shovel, rake, level, and possibly a transit level or laser level for larger areas.
- Process: Ensure the ground is as level as possible. Minor imperfections can be addressed with the base material. For significant slopes, you might need to excavate and redistribute soil. Compacting the soil after leveling is recommended. A hand tamper or plate compactor can be used.
3. Base Materials: Options for a Level Foundation
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Sand: A common choice, especially fine sand (masonry sand). It's relatively inexpensive and easy to work with. Spread the sand evenly and compact it.
- Pros: Affordable, readily available, easy to shape.
- Cons: Can shift over time, susceptible to erosion, may require frequent topping off.
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Crushed Stone/Gravel (with Sand): Some people use a thin layer of crushed stone or gravel as a base, followed by a layer of sand for leveling. The gravel provides better drainage.
- Pros: Improved drainage, more stable than sand alone.
- Cons: Can be more expensive than sand, requires more effort to install.
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Pool Pad (Foam or Felt): Placed on top of the leveled base (sand or compacted soil), a pool pad provides a smooth, protective layer between the pool liner and the ground.
- Pros: Protects the liner, adds cushioning, helps prevent punctures.
- Cons: An additional cost.
4. Compaction
Regardless of the base material, compaction is essential. A well-compacted base resists settling and shifting, maintaining the pool's levelness over time.
5. Avoiding Organic Materials
Never use organic materials like topsoil, wood chips, or mulch under your pool. These materials decompose, creating voids and causing the pool to settle unevenly.
Additional Tips:
- Consider a professional: If you're uncomfortable with leveling or excavating, hire a professional pool installer.
- Check local codes: Some municipalities have regulations regarding pool installation.
By carefully preparing a level and stable base, you'll ensure a safe and enjoyable swimming experience for years to come.
