Welcome to Bac-Flo Unlimited, Inc.

The Backflow Technical Training Center that trains you to 'Speak Backflow'®    

Here are the most comprehensive backflow courses you'll find. In Texas, training is provided for obtaining and renewing a backflow testing license along with program development consulting and education. We are approved by the Texas Commission on Environmental Quality and the Texas State Board of Plumbing Examiners.

Backflow Gauge Sweepstakes

Drawing March 31st, 2015. All students are automatically entered...


The Bac-Flo Unlimited 845-5-0026 is the proven gauge used in backflow training courses across the United States and meets or exceeds national gauge criteria with the industry best 5 year manufacturer warranty. Each is certified to N.I.S.T. standards and comes with a laminated one-year certification report with your company's information. 'Manufacturer's Specification Sheet.'

Experienced instructors

Fred Baird Troy Baird

Irrigation/Plumbing/Water Operator licenses, University Degrees and National Certifications are just some of their credentials... 

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Class of  07' - Backflow Prevention Assembly Testers who 'Speak Backflow'®...

Student Testimonials:

"I appreciate that Troy and Fred are always ready and willing to help with problems that backflow testers face in the field".

"Instructors presented material in a professional manner and made the learning process very easy".

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

"Very thorough class, good hands on training".

"Very foreign to me but instructors simplified subject".

"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".

"Good presentation, pertinent information. Never boring".

"Course was very insightful. Instructors have plenty of knowledge about cross connections and testing."

More student testimonials

Frequently Asked Questions

Yes, you can call 210-698-0411 or 1-800-638-6232 and provide a fax number or mailing address. We also register students by either fax or mail. 

No, you don't need your own gauge for taking the course, we have plenty of practice gauges for students to use. In the course it will be advised which types of gauges to stay away from that are available for purchase over the Internet, etc. 

Yes. The Fundamentals of Backflow Prevention is a 1-day course that provides 8 hours on the BPAT along with other TCEQ water licenses such as Irrigation, Water / Wastewater, CSI and Water Treatment Specialist. If taking the 40 hour tester course, 12 hours is provided on the licenses mentioned above. Additionally the 40 hour tester course provides 100 hrs. credit from the TSBPE toward obtaining a plumbing inspector's license.
It usually takes 4 - 6 weeks after the course completion date to become licensed to test backflow prevention assemblies. After the course, all student information is submitted to the TCEQ electronically and the student fills out a license application which is put in the mail. When the license card is received back, he or she is officially a BPAT tester.  
The TCEQ license requirements include a H.S. diploma / GED, at least two years of approved water related work experience and being subject to a criminal felony background check.  
24 hours of CEUs need to be obtained every three years for license renewal with at least 8 hours being practical skills (hands on) training. All CEUs are due on or before the license expiration date. License credit can be accumulated over the three year period or taken all at one time. 
Our hands-on training is unmatched. Each backflow assembly is easily detachable from its stand and interchangeable by the students themselves. Consisting of all four types of assemblies, the practice stations have been modified externally to simulate different testing and troubleshooting scenarios that are seen in the field. Additionally the most advanced troubleshooting scenarios are practiced in our CEU courses which take renewal students to the next level.
No. The Backflow Prevention Assembly Tester license is issued by the Texas Commission on Environmental Quality (TCEQ) and is a stand alone license. It is not an endorsement on any other license.
"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.

*Best Hands-on TrainingOur backflow assembly testing stations are individually mounted and spread out in courses with available seating for students. Assemblies consist of all four types and are interchangeable by the students themselves. This results in an optimized learning environment with a relaxed atmosphere 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.


Shipping address for gauges: Bac-Flo Unlimited, Inc., 215 West Bandera Rd, Suite 114-455, Boerne, TX 78006. A 2-3 day turnaround time is usual for getting it shipped back to you.

Include $80 check or money order per gauge ($60 cert. and $20 return shipping) or click on link below to pay by credit card. Include with gauge the company name, address, phone number and return shipping address.

Our gauge testing/certification service is performed only by Troy Baird. He is Bac-Flo Unlimited's employee with over 16 years experience in testing and certifying gauges. If there are any concerns about your gauge Troy will be contacting you personally.  

Differential pressure gauges are required to be tested for accuracy when purchased and annually thereafter by most jurisdictions. This service verifies gauge 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.