FloMag
FloMag PWT magnesium oxide granular products are filter media specifically designed for potable water treatment. FloMag PWT is Certified by NSF to conform to the requirements of NSF Standard 60 for Drinking Water Chemicals – Health Effects under the Categories of pH Adjustment and Coagulation & Flocculation.
FloMag PWT is designed for point of use acid neutralization in potable water treatment. Typical applications include pH Adjustment of potable water with a pH greater than 4.
FloMag is a specially processed hard, bead-like magnesia, adapted for use in filters to neutralize acidity by increasing the pH value.
| Advantages |
|---|
| High degree of activity and speed of correction allowing high flow |
| Magnesium Oxide Physical Properties | |
|---|---|
| Color | Brownish white |
| Bulk Density | 75 lbs./cu. ft. |
| Mesh Size | 6 × 16 |
| Specific Gravity | 3.6 gm/cc |
| Effective Size | 1.4 mm |
| Uniform Coefficient | 1.7 |
| Composition | MgO 97% min. |
| Conditions for Operation | |
|---|---|
| Downflow service is generally satisfactory on waters with a hardness of less than five grains/gal. or where it’s combined with Calcite at least 50-50. Upflow service is generally recommended with hardness exceeding five grains/gal. to prevent “cementing of the Magnesium Oxide bed” | |
| Use distributors designed for upflow applications | |
| A gravel support bed is recommended | |
| Water pH range | 4.5-6.0 |
| Bed depth | 24-30 in. |
| Freeboard | 50% of bed depth (min.) |
| Backwash frequently to prevent possible cementing | |
| Backwash rate | 10-12 gpm/sq. ft. |
| Service flow rate | 5-6 gpm/sq. ft. but may be modified to adapt to local conditions |
