No, play sand is generally not recommended for an above-ground pool base. While it might seem like a soft and comfortable option, it lacks the necessary stability and drainage properties required for a secure and long-lasting pool installation.
Why Play Sand is Unsuitable
Several sources indicate that play sand is unsuitable for a pool base due to its fine texture and lack of structural integrity. Here's why:
- Instability: Play sand's fine particles don't compact well, leading to an uneven and unstable base that can shift under the weight of the pool. This can cause the pool liner to wrinkle, tear, or even the entire structure to become compromised.
- Poor Drainage: Play sand doesn't allow for adequate water drainage. Water accumulating beneath the pool can lead to soil erosion, creating further instability and potentially damaging the pool liner.
- Washes Out: Multiple sources explicitly mention the risk of sand washing out from under the pool during heavy rain, creating voids and undermining the pool's support.
Recommended Alternatives
Instead of play sand, consider using:
- Masonry Sand (Concrete Sand or Brick Sand): This type of sand is denser and compacts better, providing a more stable base. It's also more uniform, reducing the risk of rocks or pebbles damaging the pool liner. One source even suggests that masonry sand is likely "cleaner and more uniform than the concrete sand with less small rock in it."
- Pea Gravel: Offers excellent drainage and stability. It's a more robust solution, though less comfortable underfoot.
- Stone Dust: A heavy-duty option that can be used as a firm base, potentially with sand layered on top for cushioning.
Remember to consult reputable guides and professional advice for proper pool base preparation. A stable and well-drained base is crucial for the longevity and safety of your above-ground pool.
