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FloMag® PWT Granular Magnesium Oxide .66 Cu Ft
By neutralizing the free carbon dioxide in water, FloMag®
can correct red water conditions and render it to a noncorrosive
condition. FloMag®, being a reactive magnesium
oxide, is used most effectively where pH correction is
substantial or high flow conditions are in use. FloMag®,
being soluble to acidity, will have to be re plen ished
periodically. Please note, under certain low flow conditions,
FloMag® may overcorrect and create a basic condition.
FloMag® can be effectively combined with Calcite to combine
the high flow neutralization properties of FloMag®, along with
the slower reacting low flow properties of Calcite reducing
potentially high basic properties due to over correction.
Color Grayish White
Density 75lbs./cu. ft.
Effective Size 1.27 mm
Uniformity Coefficient 1.48
Active Material (%) 84-90
Composition - MgO 97% minimum
Conditions for Operation:
1. Downflow service is satisfactory on waters with a
hardness of less than 5 gr./gal. or where it’s combined
with Calcite at least 50-50. Upflow service is generally
recommended with hardness exceeding 5 gr./gal. to
prevent “cementing of the mineral bed.”
2. A gravel support bed is recommended.
3. pH - 4-6
4. Bed Depth - 24-30 in.
5. Backwash frequently to prevent possible cementing.
6. Backwash Bed Expansion - 35% of bed depth.
7. Service Rate - 5-6 gpm/sq. ft.,but may be modifi ed to
adapt to local conditions.
8. Backwash Rate - 8-12 gpm/sq. ft.
FloMag® can be mixed with Calcite to treat waters as low as 4.0 pH. Upfl ow fi lters are recommended
unless the water is under fi ve grains hard. A minimum of 50% Calcite is recommended
to prevent cementing.