Maifan stone filter systems reduce the effects of heavy metals increasing the PH level of town or tank water giving a mild Alkaline level. All Fungus, Algae & Bacteria cannot thrive in an Alkaline environment.
A 7 stage process starts with Prefilter Felt pads requiring replacement from time to time (Betty is experienced in doing this so you don't need to worry). With Betty's 20 + yrs experience, she has all the knowledge about the active carbon
stages, how they work and of course how
often the mineral balls should be replaced.