How To Select an Above Ground Pool Filter System

Choosing the Right Above-Ground Pool Filter System: A Comprehensive Guide

When shopping for an above-ground pool filter system, there are several important factors to consider to ensure you're getting the right system for your pool. Understanding the type of pump, its size, and the filter type will help you maintain crystal-clear water in your pool all season long. Here’s a breakdown of what you need to know when selecting the perfect filter system for your above-ground pool.

1. The Right Pump Size

The size of your pool will determine the size of the pump and filter system you need. The goal is to have a pump that’s powerful enough to circulate the pool water efficiently but not so powerful that it causes the water to pass through the filter too quickly, leading to inadequate filtration.

General Guidelines for Pump Sizing:

- Up to 24 feet in size: A 1-horsepower pump is typically sufficient.

- Larger than 24 feet round: A 1.5-horsepower pump is recommended.

Why Horsepower Matters:

- More horsepower doesn’t necessarily mean better—too much power could cause the water to circulate too quickly, preventing proper filtration. This could also increase your energy costs.

- It's important to find a balance that ensures proper water filtration without overworking the system.

2. Matching the Pump with the Filter

Most above-ground pool pump/filter systems are sold as a unit, making it easy to ensure you have the right size pump and filter. Manufacturers typically match the correct pump and filter for specific pool sizes, so as long as you’ve measured your pool correctly, you won’t have to worry about mismatched systems.

Key Considerations:

- If you need to replace just the pump, ensure you choose an above-ground pump (which sits below the pool’s water line) rather than an inground pump, which is designed to work differently.

- The above-ground pump is designed to push water upward, unlike inground models that pull water down from a central location.

3. Pump Speed Options

You’ll find two main types of pumps based on speed: single-speed and dual-speed.

- Single-Speed Pump: Operates at a fixed speed, which is fine for basic pool circulation.

- Dual-Speed Pump: Offers two speed settings—one for normal circulation and a higher speed for tasks like vacuuming or backwashing. This option:

- Conserves energy by running at a lower speed for regular circulation.

- Reduces noise during normal operation.

- Is more environmentally friendly and saves on long-term electricity costs.

4. Types of Pool Filters

Once you’ve determined the size of the pump you need, it’s time to choose the right type of filter. There are three main types of filters for above-ground pools: Sand, Cartridge, and Diatomaceous Earth (D.E.). Each has its advantages, so let’s explore them:

Sand Filters

- How They Work: Sand filters use a special type of filter sand to trap dirt and debris as the water passes through.

- Particle Size: Sand filters capture particles 20-40 microns in size.

- Maintenance: Requires backwashing to remove debris, which is a simple cleaning process.

- Pros: Sand filters are typically the least expensive option and have a longer lifespan (sand needs to be replaced about every 5 years).

- Cons: They can’t catch the smallest particles, but they are effective for most pool needs.

Cartridge Filters

- How They Work: Cartridge filters have pleated cartridges that trap debris as water flows through them.

- Particle Size: They filter particles as small as 10-20 microns.

- Maintenance: The cartridge can be rinsed off with a garden hose, and it may need to be replaced every 3-5 years.

- Pros: Cartridge filters provide finer filtration than sand filters and are easy to maintain.

- Cons: They are generally more expensive than sand filters and require more frequent cleaning and replacement.

Diatomaceous Earth (D.E.) Filters

- How They Work: D.E. filters use powder made from fossilized diatoms (microscopic algae) to filter out debris as small as 1-3 microns.

- Particle Size: Filters the smallest debris, giving you the clearest water.

- Maintenance: Requires backwashing and recharging with fresh D.E. powder. The filter grids also need periodic cleaning.

- Pros: Provides the best filtration, catching even the smallest particles.

- Cons: More maintenance-intensive than sand or cartridge filters and may require more frequent care.

5. Additional Options and Considerations

After deciding on the pump size, speed, and filter type, you’ll have additional options to consider. These include:

- Ease of Maintenance: Sand filters are the least maintenance-intensive, while D.E. filters require the most work. Cartridge filters fall somewhere in between.

- Cost: Sand filters are usually the most budget-friendly, while D.E. filters are the most expensive (both in initial cost and maintenance).

- Energy Efficiency: A dual-speed pump can save you money on your energy bills and is a more eco-friendly option.

- Size of the Filter System: Ensure that the filter is large enough for your pool. A larger pool requires a larger filter, which is crucial for efficient filtration.

Where to Buy Your Pool Filter System

At Discount Pool Supply, you’ll find a wide variety of pump/filter systems for above-ground pools. Choose from various sizes and types, including products from trusted brands like Game and Waterway. Shopping online means you can get free shipping across Canada, ensuring you receive your pool system quickly and efficiently.

Conclusion

Choosing the right filter system for your above-ground pool doesn’t have to be overwhelming. By considering your pool size, pump horsepower, speed options, and filter type, you’ll be able to select a system that keeps your water sparkling clean while optimizing energy use. Whether you go for a sand, cartridge, or D.E. filter, ensuring that your pump and filter match your pool’s needs is key to efficient operation.