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Introducing the Polaris Lab Water Systems
High Purity Water Made In The USA.
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Media Tank Sizing Tables By Media Type
| 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 | 50 | | Resin (fine mesh) | 50 | 15 to 20 | 2.5 to 4 | 20 to 30 | 5 | | 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 |
|---|
| 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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