Softening Resin ProSoft™ Premium
ProSoft™ Premium (P/N ER10002) is the best value for an all-around, hard working, softening resin. It is primarily used on the types of chlorinated waters associated with municipal water treatment. Its full 8% crosslinking makes ProSoft™ Premium more resistant to chlorine attack and the vigorous backwashes of commercial applications and turbulators.
ProSoft™ Premium is ideally suited for use in industrial softening applications because of its high capacity, uniform particle size, and good physical stability. It is intended for use in all water softening, dealkalization, deionization, and chemical processing applications.
ER10002 Pressure Drop Graph
PRESSURE DROP — The graph above shows the expected pressure loss per foot of bed depth as a function of flow rate at various temperatures.
ER10002 Backwash Graph
BACKWASH — After each cycle the resin bed should be backwashed at a rate that expands the bed 25 to 50 percent. This will remove any foreign matter and reclassify the bed. The graph above shows the expansion characteristics of ProSoft™ Premium in the sodium form.
per cu.ft.
per cu.ft.
5 20.0
7.5 25.4
10 29.0
15 33.0
  The sodium cycle operating capacity for hardness removal at various regeneration levels with an influent calcium/magnesium ratio of 2/1 and a hardness level of 500 ppm, as CaCO3.
Additional Resin Capacity Information
per cu.ft.
per cu.ft.
5 19.0
7.5 23.0
10 25.3
15 28.1
  The hydrogen cycle operating capacity for hardness removal at various regeneration levels with an influent calcium/magnesium ratio of 2/1 and a hardness level of 500 ppm, as CaCO3.
ProSoft™ is a trademark of Safe Water Technologies, Inc.
  Conforms to paragraph 21 CFR173.25 of the Food Additives Regulations of the FDA  
  Complies with USDA regulations for potable water systems  
  Uniform particle size, low pressure drop  
  Superior physical stability  
  Low color throw  
  Certified to NSF/ANSI Standard 61  
Part Number ER10002
Polymer Structure Styrene crosslinked with DVB
Functional Group R-(SO3)-M+
Ionic Form (as shipped) Sodium or Hydrogen
Physical Form Tough spherical beads
Screen Size Distribution
  + 16 mesh (US Std.)
  – 50 mesh (US Std.)
5% maximum
1% maximum
pH Range 0 to 14
Sphericity 93% minimum
Uniformity Coefficient Approx. 1.6
Water Retention
  Sodium Form
  Hydrogen Form
42 to 49%
47 to 54%
Solubility Insoluble
Approx. Ship. Wt.
  Sodium Form
  Hydrogen Form
52 lb/cu.ft.
50 lb/cu.ft.
Swelling Ca+2 or Na+ to H+ 5 to 9%
Total Capacity
  Sodium Form
  Hydrogen Form
1.9 meq/mL min.
1.8 meq/mL min.
Maximum Temperature
  Sodium Form
  Hydrogen Form
280°F (138°C)
265°F (130°C)
Minimum Bed Depth 24 inches
Backwash Rate
  50% Bed Exp. @60°F
(See graph left)
  4.5 gpm/sq.ft.
Regenerant Concentration *
  Sodium Cycle
  Hydrogen Cycle (Option 1)
  Hydrogen Cycle (Option 2)
10 to 15% NaCl
10% HCl
1 to 8% H2SO4
Regenerant Flow Rate 0.5 to 1.5 gpm/cu.ft.
Regenerant Contact Time 20 minutes minimum
Regenerant Level 4 to 15 lb/cu.ft.
Displacement Rinse Rate 0.5 to 1.5 gpm/cu.ft.
Displacement Rinse Volume 10 to 15 gal/cu.ft.
Fast Rinse Rate 2 to 10 gpm/cu.ft.
Fast Rinse Volume 35 to 60 gal/cu.ft.
Service Flow Rate 2 to 10 gpm/cu.ft.
Pressure Drop (See graph left)
* CAUTION: DO NOT MIX ION EXCHANGE RESINS WITH STRONG OXIDIZING AGENTS. Nitric acid and other strong oxidizing agents can cause explosive reactions when mixed with organic materials such as ion exchange resins.
SWT Ion Exchange Resin Guide
Cation Resin Selection Chart
Resin Capacity Comparison Chart
Iron Removal Comparison Chart
This information has been gathered from standard materials and or test data that is believed to be accurate and reliable. Nothing herein shall be determined to be a warranty or representation expressed or implied with respect to the use of such information or the use of the goods described for any particular purpose alone or in combination with other goods or processes, or that their use does not conflict with existing patent rights. No license is granted to practice any patented invention. It is solely for your consideration, investigation and verification.
Safe Water Technologies, Inc.
996 Bluff City Boulevard
Elgin, IL 60120 USA
Telephone: +1.847.888.6900
Facsimile: +1.847.888.6924

Last Updated: June 13, 2018