Water treatment training and consulting

Reverse Osmosis Specialist
Certification Training


       Contact us with questions1-877-711-4347 or emailorDownload ourRO Specialist
Cert. Handbook



David H. Paul, Inc.’s (DHP’s) Reverse Osmosis Specialist Certification Program certifies the knowledge and proficiency of personnel who work with reverse osmosis (RO) and nanofiltration (NF) technologies.  DHP’s definitions:

  • Knowledge = understanding of theory, chemistry, monitoring, troubleshooting, etc.
  • Proficiency = ability to perform specified tasks related to RO water treatment


DHP’s Reverse Osmosis Specialist Certification Program has four levels.  These are:



Level1234   What is LearnedRO FundamentalsIntermediate ROAdvanced RORO MasteryCertificationReverse Osmosis Specialist I Reverse Osmosis Specialist II  Reverse Osmosis Specialist III  Reverse Osmosis Specialist IV


  • Certifications must be obtained sequentially (Level 1, then Level 2, etc.)
  • Certification is good for 3 years
  • Recertification requires a minimum of 24 hours of additional approved training and passing a Recertification Exam every 3 years.  There is a $50 fee to take the Recertification Exam.
  • DHP training is step by step, easy to understand and interesting.
  • DHP has successfully trained over 20,000 water treatment professionals including those who didn’t do well in high school 20 years ago
  • DHP’s training methodology ensures that each student who participates fully in the training will successfully pass the certification exams
  • For details, click on the RO Specialist Certification Handbook below



Being certified is valuable

  • Value to the certified individual
    • Increased promotion potential
    • Increased pay potential
  • Value to the company
    • Knowledgeable and proficient personnel provide:
      • Increased value to customers, owners and investors
      • A better profit margin
        • By making fewer costly mistakes
        • By catching problems at an earlier stage


What Certification Level Should You Have?

  • Everyone involved in reverse osmosis water treatment should have the knowledge and proficiencies taught in Reverse Osmosis Specialist I & Reverse Osmosis Specialist II.  This includes operators, maintenance personnel, instrumentation/control techs, supervisors, managers, service techs, etc.
  • Lead personnel, plant engineers and anyone involved in monitoring the performance and troubleshooting problems of high-tech water treatment systems should additionally have Reverse Osmosis Specialist III & Reverse Osmosis Specialist IV certification.


For complete details, please download DHP’s Reverse Osmosis Specialist Certification Handbook


To Purchase a Reverse Osmosis Specialist (ROS) Certification Level:


CertificationROS I Online ROS I SeminarROS II SeminarROS III SeminarROS IV SeminarLinksAdd to CartClick Here (Then filter by Level 1 Certification)Click Here (Then filter by Level 2 Certification)Click Here (Then filter by Level 3 Certification)Click Here (Then filter by Level 4 Certification)



Contact us with questions1-877-711-4347 or emailorDownload ourRO Specialist
Cert. Handbook



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