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Celebrating 34 years providing high quality products and advice.
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Do you have a water softener?
Try our Water Softener Capacity Calculator
9"w X 42"h
Mineral Tank
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How much filter media do you need?
If you need to figure out how much filtration media you need to fill a water system device
or filter cartridge you can doit simply here.
Filter cartridges and exchange tanks are generally filled completely.
Automatic regenerating systems like water softeners and auto carbon systems need space to expand during backwashing.
You will not want to fill these cylinders to the top.
Enter the dimensions of the cylinder in inches
and we will calculate how much resin you will need and will also include other information you might need.
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Ft3 = Cubic Feet
| Media | Pounds Ft 3 | Service Rate GPM/Sq. Ft. | Backwash Rate GPM/Sq. Ft. | Bed Depth Inches | Bed Expansion % | | BIRM (Regular) | 50 | 3.5 to 5 | 10 to 12 | 30 to 36 | 35 to 50 | | Mang. Greensand | 85 | 5 | 8 to 12 | 30 | 35 to 50 | | Carbon | 35 | 5 | 8 to 10 | 26 to 30 | 30 to 40 | | Filter Ag. | 25 | 5 | 8 to 10 | 24 to 36 | 35 to 50 | | Calcite | 100 | 3 to 6 | 8 to 12 | 24 to 30 | 35 | | Corosex | 100 | 5 to 6 | 8 to 12 | 24 to 30 | 35 | | Resin (reg) | 50 | 20 to 30 | 3 to 8 | 24 to 30 | 60 | | Resin (fine mesh) | 50 | 15 to 20 | 2.5 to 4 | 20 to 30 | 60 | | Pyrolox | 125 | 5 | 25 to 30 | X | 15 to 30 | | KDF | 171 | 15 | 30 | 10+ | 10 to 15 | | ChemSorb | 55 | 15 to 20 | 18 to 20 | X | 30 to 50 | | MTM | 45 | 5 | 8 to 10 | 24 to 36 | 20 to 40 |
| Tank Diameter Inches | Tank Diameter Square Ft. Bed Area | Cu. Ft. Per Inch of Height | Backwash Rate In G.P.M. Per Square Foot Of Bed Area At |
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| 5 gpm | 8 gpm | 10 gpm | 15 gpm |
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| 6 | 0.20 | 0.02 | 1.0 | 1.6 | 2.0 | 2.4 | | 7 | 0.27 | 0.02 | 1.3 | 2.1 | 2.7 | 3.2 | | 8 | 0.35 | 0.03 | 1.8 | 2.8 | 3.5 | 4.2 | | 9 | 0.44 | 0.04 | 2.2 | 3.5 | 4.4 | 5.3 | | 10 | 0.55 | 0.04 | 2.8 | 4.4 | 5.5 | 6.6 | | 12 | 0.79 | 0.07 | 4.0 | 6.3 | 7.9 | 9.5 | | 13 | 0.92 | 0.08 | 4.6 | 7.4 | 9.2 | 11.0 | | 14 | 1.07 | 0.09 | 5.4 | 8.6 | 10.7 | 12.8 | | 16 | 1.40 | 0.12 | 7.0 | 11.2 | 14.0 | 16.8 | | 21 | 2.40 | 0.20 | 12.0 | 19.2 | 24.0 | 28.8 | | 22 | 2.64 | 0.22 | 13.2 | 21.1 | 26.4 | 31.6 | | 24 | 3.14 | 0.26 | 15.7 | 25.1 | 31.4 | 37.7 | | 30 | 4.90 | 0.41 | 24.5 | 39.2 | 49.0 | 58.8 | | 36 | 7.07 | 0.59 | 35.4 | 56.6 | 70.7 | 84.8 | | 42 | 9.62 | 0.80 | 48.1 | 76.9 | 96.2 | 115.4 | | 48 | 12.57 | 1.05 | 62.9 | 100.6 | 125.7 | 150.8 | | 54 | 15.90 | 1.33 | 79.5 | 127.2 | 159.0 | 190.8 | | 60 | 19.63 | 1.64 | 98.2 | 157.0 | 196.3 | 235.6 | | 66 | 23.76 | 1.98 | 118.8 | 190.1 | 237.6 | 285.1 | | 72 | 28.27 | 2.36 | 141.4 | 226.2 | 282.7 | 339.2 |
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