Skip to content
VillaPool

—Pumps, filtration and plant

Choosing a pool filter

The filter does the cleaning that keeps water clear. Its type and size decide how well it does that and how much attention it needs.

Most villa pools use media filters — sand or glass — in a pressure vessel, cleaned by backwashing. Cartridge filters trap dirt in pleated elements that are removed and rinsed, using less water but needing hands-on cleaning. Each type can work well when correctly sized.

Equipment guides are about choosing, sizing and installing plant, not about day-to-day pool care.

Sizing is based on the flow rate from the pump and the filter’s rated area; an undersized filter clogs quickly and filters poorly. Plant room space, drainage for backwash water and how often the filter will be cleaned also shape the choice. Combining the filter choice with the pump selection gives a balanced system.

01Summary

What matters most here

  • Media filters

    Sand or glass, cleaned by backwashing.

  • Cartridge filters

    Rinsed by hand, less backwash water.

  • Size to the pump

    Undersized filters struggle.

02Detail

Comparing types

  • Sand

    The most common media in villa pools: robust, simple to backwash and replaced every few years when it clumps or wears.

  • Glass media

    Used in the same vessels as sand, with different characteristics.

  • Cartridge

    Fine filtration, no backwash, regular rinsing.

  • Vessel size

    Matched to flow for proper filtration.

  • Backwash water

    Media filters send dirty water to drain when backwashed, so a suitable drain connection is part of the plant design.

03Before you start

When choosing

  • Check plant space

    For vessel and valves.

  • Plan backwash drainage

    For media filters.

  • Consider upkeep

    Backwashing or rinsing.

—In practice

How to use this

Match the filter to the pump’s flow and to how the pool is used. Decide between media filters cleaned by backwashing and cartridge filters cleaned by hand, thinking about water used for backwashing and who will look after it. Check there is a suitable drain for backwash water and enough space around the filter for servicing.

Mistakes worth avoiding

Undersizing the filter
A filter too small for the pump’s flow struggles to keep water clear and needs frequent, inconvenient cleaning.
No backwash drain
Media filters send water to waste when backwashed. Without a proper drain, that water ends up in the garden.

04FAQ

Common questions about this

Which filter is better?
Each can work well; the choice depends on space, drainage and how it will be looked after.
Can a filter be too small?
Yes; it will clog quickly and filter less effectively.
Do cartridge filters save water?
They avoid backwashing, though cartridges need rinsing.
Can I switch filter type later?
Yes, with plumbing changes in the plant.

05Read next

More pool guides on this

Filed under pump & filtration systems. Every pool guide is listed on the pool guides page.

—NEXT

Choosing filtration?

Tell us about the pool and plant space. We will suggest filter options.

Describe your pool+971 56 181 0106WhatsAppPump & Filtration Systems