Softening Resin ProSoft™ High Porosity
ProSoft™ High Porosity (P/N ER10009) is the most chemically resistant softening resin we offer. It is manufactured for minimal pressure drops and where high iron content requires constant bed cleaning with solvents. ProSoft™ High Porosity is also a favorite in chemical processing applications.
ProSoft™ High Porosity is ideally suited for use in severe operating conditions, especially where standard grade resins are known to fail due to thermal, osmotic, or oxidative attack. It has a high level of DVB which gives it a longer service life when softening aggressive waters where moderate de-crosslinking is anticipated (such as a hot process softener). It is intended for use in water softening, deionization, and chemical processing applications.
ER10009 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.
ER10009 Backwash Graph
BACKWASH — After each cycle the resin bed should be backwashed at a rate that expands the bed 50 to 75 percent. This will remove any foreign matter and reclassify the bed. The graph above shows the expansion characteristics of ProSoft™ High Porosity.
per cu.ft.
per cu.ft.
5 17.0
7.5 21.6
10 24.6
15 28.0
  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 16.2
7.5 19.6
10 21.5
15 23.8
  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  
  Macroporous structure  
  Uniform particle size, low pressure drop  
  Superior chemical and physical stability  
  Certified to NSF/ANSI Standard 61  
Part Number ER10009
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.)
3% maximum
1% maximum
pH Range 0 to 14
Sphericity 95% minimum
Water Retention
  Sodium Form
  Hydrogen Form
42 to 50%
45 to 55%
Solubility Insoluble
Approx. Ship. Wt.
  Sodium Form
  Hydrogen Form
50 lb/cu.ft.
48 lb/cu.ft.
Swelling Ca+2 or Na+ to H+ 3 to 5%
Total Capacity
  Sodium Form
  Hydrogen Form
1.65 meq/mL min.
1.55 meq/mL min.
Maximum Temperature
  Sodium Form
  Hydrogen Form
300°F (149°C)
285°F (141°C)
Minimum Bed Depth 24 inches
Backwash Rate
  50% Bed Exp. @60°F
(See graph left)
  6.2 gpm/sq.ft.
Regenerant Concentration *
  Sodium Cycle
  Hydrogen Cycle (Option 1)
  Hydrogen Cycle (Option 2)
10 to 15% NaCl
5 to 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
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: August 14, 2017