Welcome to Bac-Flo Unlimited, Inc. Backflow Training

Home of Backflowology®: The Study of Backflow! 

Bac-Flo Unlimited has the most comprehensive courses and quality training in backflow prevention and cross connection control along with program development consulting and education. All courses are approved by the Texas Commission on Environmental Quality and the Texas State Board of Plumbing Examiners.



Backflow Certification Schedule

Backflow Certification Trainers
Meet Fred! Fred Baird Meet Troy Troy Baird

Bac-Flo Unlimited instructor credentials include irrigation, plumbing and water operator licenses along with university degrees and national certifications... 

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Testers who 'Speak Backflow'®...

  • "Instructors have plenty of knowledge about cross connections & testing, very patient and humble".

  • "Very thorough class, good hands on training".

  • "I'm surprised by the amount of information I learned in the short amount of time. I look forward to future dealings with Bac-Flo Unlimited".

    More student testimonials >>

"Don't Settle for Less!"  You receive:

  • Free gauge certification for renewal students

  • Free in-field troubleshooting assistance after completion of 24 or 40 hr. course

  • Interchangeable backflow testing stations with seating (#1 rated)

  • TCEQ training credits for other water licenses

  • National ABPA tester certification available

  • Two instructors for one-on-one hands on training opportunity

  • Learn from actual field and enforcement experience   

Visit our Supply House!

  'BAC-FLO-5' Top Rated        Test Kit


'Exclusive Package'

Bac-Flo Unlimited: "Don't Settle for Less!"

*Free Gauge Certifications - One free gauge certification and report is available to each enrolled student in a continuing education course.  This service is offered at no charge only at the time of the course. Note: gauge testing is not part of course instruction, though Bac-Flo Unlimited can offer this service due to the advantage of having two instructors on site.

*Free Troubleshooting Assistance - After completing the 40 hr. tester or 24 hr. renewal course, backflow prevention assembly testers can contact one of our instructors for in-field assistance in the troubleshooting and repair of backflow prevention assemblies. In most instances they can help solve your problem over the phone.

*Two Instructors - This is beneficial in the hands-on training for backflow prevention assembly testers. It enables the student the opportunity to have personal one-on-one training with an instructor.

*National ABPA Tester Certification - This certification is useful for testers who plan to test backflow prevention assemblies outside of Texas. The course and training material are the same as for the standard state certification, with the exception of the written exam and final certification coming from the American Backflow Prevention Association. Add $150 to the price of the 40 hr. tester course for this national certification.

*TCEQ Training Credits - Texas Commission on Environmental Quality (TCEQ) training credits are provided with all courses for Backflow Prevention Assembly Testers and for other water licenses when attending the 40 Hr. Tester or 8 Hr. Fundamental Course. CEUs are also provided by the Texas State Board of Plumbing Examiners for credit toward obtaining a Plumbing Inspector's License.

*Separated Practice StationsBackflow testing stations are spread out and separated in every course with seating. Additionally all four types of assemblies are easily interchangeable by students themselves. The result is a relaxed atmosphere, an optimized learning environment and the opportunity for one-on-one training with an instructor.

*Learn from Experience - Courses are taught by experienced instructors in the areas of enforcement, testing, troubleshooting and repairing backflow prevention assemblies. You will learn first hand the dos and donts. Cross connection control and backflow prevention is our primary focus.

"Speak Backflow"®

 Bac-Flo Unlimited, Inc.

P.O. Box 690053
San Antonio TX, 78269
Ph:  210-698-0411
Fax: 830-249-1994


Our gauge testing and certification service is performed by Troy Baird. He is Bac-Flo Unlimited's employee with over 18 years experience in testing and certifying gauges. If there are any questions or concerns with your gauge Troy will be personally contacting you. 

Differential pressure gauges are required to be tested for accuracy when purchased and annually thereafter by most jurisdictions. This service verifies accuracy to plus or minus .2 psid in accordance with N.I.S.T. national standards. Upon precise verification a detailed certification report is provided in reference to the gauge serial number and testing company. For additional information about gauge certifications feel free to contact us by phone or email.

Shipping your gauge for an annual certification is easy:

1. Our secure shipping address is: Bac-Flo Unlimited, Inc., 215 West Bandera Rd, Suite 114, Box 455, Boerne, TX 78006. A 2-3 day turnaround time is usual.

2. Include $80 check or money order per gauge ($60 cert. and $20 return shipping) or pay online here by credit card.  

3. Include the company name, co. address and co. phone number along with return shipping address.