ECODROP: Activated Filter Material 

Filter material is essential for good pool water quality and must be replaced regularly:
Quartz sand: every 3-4 years
Filter glass: every 7-8 years
We recommend AFM mixed with Bio-Zeolite for chemical-free pools, but also if chemicals are used.
AFM from Dryden Aqua has been proven to have the best filter performance, is very durable, is made from local waste glass using solar energy and is a Swiss product.
When did you replace your filter media? Now is a perfect time to do it right.
@DrydenAquaCorp