Iron Manganese Water Filter

Correct Sizing - Filters should be sized for the anticipated flow rates to avoid short-circuiting or excessive head loss. Undersized units will not treat the watereffectively.

Pretreatment - Large sediments and organic matter removal prolongs manganesesand life. A grease trap is a filter for fats before the main filter.

Backwashing - Frequent backwashing reduces the build-up and improvespermeability. Proper technique stirs the bed without disturbing the coating.

Maintenance Check valves and underdrains shall be in proper working order.Inspect coating annually. Replace if worn. Test treated water to confirmcontaminants are below standards.

Media Support - Anthracite or garnet layers over manganese sand facilitate solidsseparation and extend coating life. Gravel support prevents fluidisation of the bed.

Installation - Install filter upstream of pressure tanks with proper fall and valving forgravity drainage and refilling. Do not freeze.

Water Chemistry High iron, manganese, pH or organics may require pretreatmentor an additional filter vessel. Modify process for variable source quality.

Drainage Make sure backwash water from septic systems is discharged awaysafely and according to local codes to avoid muddy runoff problems.

Manganese sand filters, when used properly, are a low-cost and long-lastingtreatment. But adherence to best practices in design, installation and operation willensure maximum performance benefits.