Types of Pool Filters

Pool filters are essential for keeping your water clean by removing dirt, debris, and contaminants. The three main types of pool filters are:

1. Sand Filters

✔ How It Works: Water passes through a tank filled with specially graded sand that traps dirt and debris.

✔ Maintenance: Requires backwashing (reversing water flow) to clean the sand. Sand should be replaced every 5–7 years.

✔ Pros: Easy to use, low maintenance, and cost-effective.

✔ Cons: Less effective at filtering fine particles compared to other options.

2. Cartridge Filters

✔ How It Works: Uses a pleated filter cartridge to capture debris. Water flows through the cartridge, and particles get trapped in the folds.

✔ Maintenance: Cartridges need to be cleaned every 2–6 weeks and replaced every 1–3 years.

✔ Pros: Provides better filtration than sand filters, uses less water, and requires no backwashing.

✔ Cons: Requires manual cleaning and cartridge replacement.

3. Diatomaceous Earth (D.E.) Filters

✔ How It Works: Uses a fine powder made from fossilized algae (Diatomaceous Earth) that coats a filter grid, trapping even the smallest particles.

✔ Maintenance: Requires backwashing and replenishing the D.E. powder after cleaning. The grids should be cleaned periodically.

✔ Pros: Offers the best filtration, removing particles as small as 2–5 microns.

✔ Cons: More expensive, requires frequent maintenance, and needs D.E. powder replenishment.

Which Filter Is Best for You?

• Sand Filters – Best for large pools needing low-maintenance, budget-friendly filtration.

• Cartridge Filters – Ideal for those seeking improved filtration with minimal water waste.

• D.E. Filters – Perfect for those wanting the highest water clarity, despite higher maintenance needs.