If you’ve ever stood in a pool supply aisle holding a filter brochure like it’s written in another language, you’re not alone. Pool filters come in a few types, but the most common battle is between sand and cartridge.
So which one’s better? Let’s break it down.
Sand Filters: The workhorse of pool filtration
Sand filters are the old reliable option. They work by forcing water through a bed of fine-grade sand, which traps particles. When the pressure rises, you backwash it to flush out the gunk.
Pros:
- Easy to use
- Low maintenance
- Long lifespan if maintained
- Best for larger pools with heavy debris
Cons:
- Not as precise in filtering fine particles
- Uses more water when backwashing
- Larger footprint
Cartridge Filters: The precise and compact option
Cartridge filters use pleated material to catch debris. Instead of backwashing, you remove the cartridge and hose it off.
Pros:
- Filters finer particles
- Energy-efficient (less pressure loss)
- Compact and easier to install
- No water waste from backwashing
Cons:
- Requires more frequent cleaning
- Needs full replacement every 1–2 seasons
- Can be pricier up front
Which one is right for you?
- Big pool with lots of leaves and dirt? Sand filter.
- Smaller or mid-sized pool in a cleaner yard? Cartridge.
- Want less hands-on work? Sand.
- Want better water clarity and don’t mind cleaning? Cartridge.
The best filter is the one that matches your pool’s environment and how much time you want to spend maintaining it. Don’t overthink it. Just pick what fits your setup, and commit to taking care of it.
Your pool will reward you.
Want a side-by-side breakdown from a pro? InyoPools’ comparison chart covers the main differences clearly.
