A pool cove is a crucial component used in the construction of above-ground pools. It is essentially a barrier or berm located at the interior base of the pool wall, where the wall meets the ground surface. Its primary function is to provide a smooth, supportive transition from the pool wall to the pool bottom.
Location and Purpose of a Pool Cove
The pool cove is installed inside the pool structure, running along the entire circumference of the pool wall, just before the pool liner is laid down. Its main purposes include:
- Liner Support: It provides critical support for the pool liner at its most vulnerable point – the 90-degree angle where the wall meets the floor. Without a cove, the liner would be subjected to extreme stress and stretching at this angle from the weight of the water.
- Preventing Liner Damage: By creating a smooth, sloped transition, the cove prevents the liner from bulging, tearing, or puncturing at the base due to pressure or movement of the base material.
- Structural Integrity: While primarily supporting the liner, the cove also helps stabilize the base material (like sand) and contributes to the overall structure of the pool bottom.
Why is a Pool Cove Important?
Using a pool cove is not just a recommended practice; it's often a requirement for proper pool setup and longevity.
- Extends Liner Life: By reducing stress on the liner, the cove significantly extends its lifespan, preventing premature failure and the need for costly replacements.
- Maintains Structural Health: Protects the pool's base and wall integrity.
- Warranty Compliance: A critical reason to use a pool cove is for warranty validation. As noted, "Many times pool warranties are voided if cove isn't used." Manufacturers often require the installation of a cove to ensure the pool is properly constructed and the liner is adequately protected.
Types of Pool Coves
Pool coves can be constructed using various materials:
- Sand Cove: Traditionally created using moist sand or a sand-cement mix. This is often the most economical option.
- Pros: Inexpensive, readily available.
- Cons: Can wash out over time if not properly compacted or protected, less uniform shape than manufactured options.
- Foam Cove: Made from dense foam material, typically in pre-shaped lengths or rolls.
- Pros: Easy to install, lightweight, uniform shape, resistant to washing out.
- Cons: Can be more expensive than sand.
- Pre-formed Plastic/Vinyl Cove: Manufactured rigid sections that snap or fit together.
- Pros: Very durable, provides a perfect shape, easy installation, resistant to washing out.
- Cons: Typically the most expensive option.
Regardless of the material chosen, ensuring a properly formed and secure cove is essential for the performance and lifespan of an above-ground pool and its liner.
