What does Defeman filter media mean in practice?
Properties depend on the current commercial product and manufacturer, therefore the name should not be considered as a general chemical class.
When does it matter?
Without a technical data sheet, it is impossible to reliably determine the required regeneration, pH range or rinse flow.
Which solutions are related to it?
Before use, the exact symbol, composition, certificate and instructions are verified, and the selection is made after a full water test.