Most pools use a sand filter. It's a simple, proven design, but the sand itself has a weakness. AFM, a filter media made by Dryden Aqua, is designed to replace it.
The problem with sand
Over time, bacteria form a slimy layer called biofilm on the grains of sand. Biofilm is hard to remove with backwashing, uses up chlorine and can lead to cloudy water and the familiar 'chlorine' smell, which is actually caused by combined chlorine.
What AFM does differently
AFM is made from processed glass and is designed to resist biofilm. Because bacteria struggle to grow on it, the filter stays cleaner, the water stays clearer and the pool typically needs less chlorine to stay healthy.
- Clearer water, with finer filtration
- Resists biofilm, so the filter stays cleaner
- Often reduces the chlorine needed
- Usually goes straight into your existing sand filter
Daisy Plus
Daisy Plus is the wider Dryden Aqua system, combining AFM with dosing and flocculation for very high water quality. It's popular in pools where swimmer comfort really matters.
Is AFM worth it for your pool?
For most pools, switching to AFM when the sand is due for replacement is a worthwhile upgrade. If you'd like to know whether it suits your pool, we can take a look.
Read more about our afm & daisy plus, or call us on 01483 904704.
