David H. Paul, Inc.

David H. Paul, Inc. (DHP)


Since 1988 David H. Paul, Inc. (DHP) has been the world's leader in membrane water treatment training and water treatment consulting.


Our expertise includes:


  • microfiltration (MF)
  • ultrafiltration (UF)
  • nanofiltration (NF) & reverse osmosis (RO)
  • high purity water treatment (HPWT)
    • ion exchange (IX)
    • electrodeionization (EDI)
  • many others.



4 Levels of RO Certification


DHP has more experience in water treatment training and consulting in the reverse osmosis (RO) field than any other company in the world.  DHP has trained tens of thousands of water treatment professionals at hundreds of facilities, including brackish water, seawater and wastewater treatment plants.


DHP provides the following water treatment training.




Objective verification

of knowledge and proficiency;

personally and as an employer



- Level 1: RO Specialist I

- Level 2: RO Specialist II

- Level 3: RO Specialist III

- Level 4: RO Specialist IV

Click here to learn more

Live chat

Need Help? Use our contact form or Call 1-877-711-4347 or

WTCP Student Exams   |   Water Technologies Training Institute   |    Career Placement
This website copyright 2015 by David H. Paul, Inc.
Physical Address: 1911 Rustic Place, Farmington, NM 87401 USA | Mailing Address: PO Box 2590, Farmington NM, 87499 USA | Phone: 1-877-711-4347 | Fax: 505-327-2934
Email: dhp@dhptraining.com