What does manganese removal filter mean in practice?
Manganese is harder to oxidise than iron and often requires higher pH, a stronger oxidant or an active catalytic surface.
When does it matter?
An iron filter may not remove manganese, and ammonium or organic matter can further hinder the process.
Which solutions are related to it?
Select pH, oxidation, contact time and media from testing and provide adequate backwash and downstream manganese checks.