What does your company need from a backflow tester?
You are hiring for recurring, deadline-driven route work. The backflow prevention assemblies on the fire lines you service sit on testing cycles, every test produces documented results, and a failed assembly turns into a repair job on your board.
Scope the seat before you write the ad. Decide whether the role covers fire lines only or domestic water assemblies too, whether it is testing only or testing plus repairs, and whether it is a dedicated route or added onto an existing service tech's week.
The oversight that shapes this hire is local. Who must certify testers, and which programs (ASSE, ABPA, AWWA sections, state programs) are accepted, is set by state health and environment agencies, plumbing boards or local water purveyors. The water purveyor therefore sits on the requirements list for this hire alongside any state agency — ask what it accepts before you name a credential in the ad.
You have two shapes this hire can take. One: add a certified tester to an existing sprinkler service department — the eligibility rules make that a realistic fit, because in Texas the approved experience for the state's Backflow Prevention Assembly Tester license explicitly includes installing or servicing fire suppression sprinkler systems and lines. Two: hire a dedicated tester who runs testing as its own route with its own customer base.
The credential bodies even name the fire-specific credential: ASSE's 5000 series includes 5140, Fire Sprinkler Cross-Connection Control Tester, alongside the 5120 Cross-Connection Control Surveyor, 5130 Backflow Prevention Assembly Repairer and 5150 program administrator. The ASSE series page we read did not spell out the 5140 eligibility and exam details, so check with ASSE before you require it in an ad.
For the day-to-day picture first, the career guide covers what a backflow tester does.
Looking to hire? Post your backflow tester role on FireProtectionHires and reach people who already work in fire protection.
Post a Backflow Tester Job →What license, NICET level or certification should a backflow tester have?
Build the requirement in two layers: the tester certification, then any state or local license on top. Neither layer is national. Who must certify testers and which programs are accepted is set by state health and environment agencies, plumbing boards or local water purveyors. ABPA's own advice to testers is to check with local water or health departments about whether its certification is recognised in their area.
The best-documented program is ASSE 5110, Backflow Prevention Assembly Tester. It requires at least 5 years of documented practical experience in plumbing, mechanical, fire protection, lawn irrigation or a related field, plus a minimum 40-hour training course. The written exam is 100 questions, passed at 70%, and the practical exam runs on RP (ASSE 1013), DC (1015), PVB (1020) and SVB (1056) assemblies. Certification lasts three years.
ABPA runs a voluntary Backflow Prevention Assembly Tester certification on the same four assemblies: candidates need a training course or two years' experience in a recognised program, then pass a closed-book written exam and a performance exam on RP, DC, PVB and SVB. The certification is valid for three years.
A week-long USC Foundation tester course is not the same thing as a certification. The course runs lectures plus wet-lab practice and ends in written and performance exams; the course is worth 3.6 CEUs, and graduates receive a certificate of completion — course completion, not an ongoing tester certification. A resume that lists only the course is a candidate to re-check, not a certified tester.
On the NICET question: ITWBS — NICET's Inspection and Testing of Water-Based Systems program — has three levels, I through III, and covers inspection and testing of water-based fire protection systems. The assembly-tester certifications above come from ASSE, ABPA, AWWA sections and state programs — different bodies, different credentials. If your contracts or AHJ name a NICET level for your service techs, keep that requirement separate in the ad from the tester certification your water purveyor requires, and confirm with the purveyor what it counts.
A state can also license the tester directly. In Texas, anyone who tests or repairs backflow prevention assemblies must hold a TCEQ Backflow Prevention Assembly Tester (BPAT) license. Texas BPAT licensing requires a high school diploma or GED, two years of approved experience, a 40-hour backflow course, a $111 application fee and an exam; the license lasts three years and renews with 24 CE hours, of which 8 must be hands-on. That is Texas's rule, not a national one.
Confirm before you hire: recognition is local, and requirements differ from area to area. Before the requirement goes into the ad, ask your water purveyor which tester certifications and licenses it accepts, and your state agency what it requires of the individual.
How much should you pay a backflow tester?
Start from an honest benchmark: BLS publishes no backflow-tester-only wage line. Any figure quoted as what "backflow testers earn" per BLS is not a BLS number.
The nearest stand-in is the pipe trades. In the BLS Occupational Employment and Wage Statistics for May 2025 (national, all industries), plumbers, pipefitters and steamfitters (SOC 47-2152) earned a median of $63,800 per year, or $30.67 per hour. The 10th percentile was $44,150 and the 90th percentile was $108,420, across 465,840 employed in the occupation. The SOC covers plumbers and pipefitters as well as sprinkler work, so label it as the proxy it is when you build the offer.
What moves the offer? The same things that move any service-seat offer, plus this role's specifics: whether the tester also repairs and rebuilds assemblies or only tests them, the certification and any state license they hold, and the size and geography of the route. Add whether they own the customer conversation and the reporting each test requires. Recruiting-site salary estimates are estimates; do not treat them as data.
If you plan to tie raises to credentials, set the steps inside your own wage structure — our research found no published, trade-wide pay chart for backflow testers to copy.
Where do you find backflow tester candidates?
Look inward first. A sprinkler service tech's experience can count toward the credential: fire protection work is one of the experience fields ASSE 5110 names, and in Texas the approved experience for the state BPAT license explicitly includes installing or servicing fire suppression sprinkler systems and lines. Check which of your people already hold the years the certification requires.
Plumbing and irrigation backgrounds qualify too — ASSE 5110 names plumbing, mechanical, fire protection, lawn irrigation or a related field as its experience base — so your applicant pool is wider than the fire protection trade alone. The screening consequence: experience in a qualifying field is an entry requirement, not proof of testing skill — the hands-on practical and performance exams are where the testing skill itself gets tested.
To grow a tester instead of buying one, the training route runs through ASSE-approved schools: students enrol with the school, then pass ASSE's written exam and practical. The exam fees are published: $160 for the initial ASSE 5110 exam and $110 for the recertification exam, with training course fees set separately by the schools. ABPA's tester exam ran $300 for ABPA members and $330 for non-members as of October 2026. USC's week-long course is another classroom route.
Then post where the trade looks. Filling one seat is a slice of hiring for your fire protection company overall. See how shops like yours describe the role among current backflow tester jobs, and read up on where to post the job for fire protection candidates.
Before the ad goes up, check two compliance points. New York requires businesses with four or more employees to list compensation ranges in job advertisements — that is New York's law, not a national one, so check what your own state requires with your state labor agency. And keep the ad itself lawful: the EEOC treats it as illegal to publish a job ad that shows a preference for, or discourages applicants based on, protected characteristics such as race, sex, national origin, age 40 or over, disability or genetic information.
How do you screen and test a backflow tester?
Screen in two layers: verify the credential, then test the judgment the route demands.
Verification is concrete. Ask which certification the candidate holds and who issued it, and check that it is current — ASSE 5110 and ABPA tester certifications both run three years, so an expiry date inside your first year matters to your scheduling. Where the state licenses the individual, as Texas does for BPATs, check license standing with that agency. And if the resume lists a USC course, remember the course issues a certificate of completion, not a certification — ask what certification sits on top of it.
Then make the interview a work sample. Have the candidate walk you through how they approach a field test on an RP assembly — what they set up, what they record, what a failing result sets in motion, and what the report back to the water purveyor looks like. You are listening for organized, documented judgment and fluent use of the assembly vocabulary (RP, DC, PVB, SVB) — not memorized answers.
A lapsed certification is a specific, checkable problem. ASSE 5110 recertification requires a minimum 8-hour class, a written exam — 50 questions now, growing to 100 questions from January 1, 2027 — and a hands-on practical, and holders may recertify up to six months early without losing time. ABPA recertification means passing the written and performance exams again. Budget the class time and exam fees into the calendar either way.
Keep the screen lawful. Under the ADA, disability-related questions and medical examinations wait until after a conditional job offer. If you require a test, the EEOC says it must be necessary and related to the job, and must not exclude people based on protected characteristics. The agency also advises employers to make sure selection procedures are validated for the position. A vendor's validity documentation helps, but does not by itself establish validity for your use. Put the route's physical demands in the job description, not in a pre-offer medical exam.
Employment-law rules move; confirm your screening steps with employment counsel before you run them.
How long does the hire take and how do you keep them?
Our research found no published time-to-fill figure for backflow testers. What the credential rules do give you is the lead time behind each lane. Hiring someone certified on day one means hiring another route's training investment. Growing your own means the prerequisites set the runway. ASSE 5110 wants at least 5 years of documented practical experience plus a minimum 40-hour course before the exams. Texas BPAT licensing wants two years of approved experience plus a 40-hour backflow course before its exam. A tech who already has the years is a course and an exam away; a hire without them is not a near-term answer.
Run both lanes at once. Buy experience when it surfaces — testers already working routes for other contractors, plumbing-side testers adding fire lines, referrals from your own crew. Grow the rest through an ASSE-approved school or the USC course, and build the course-and-exam time into the schedule.
Keeping them starts with the renewal calendar. ASSE certifications renew every three years and may be renewed up to six months early; ABPA recertification repeats both exams on the same three-year cycle; a Texas BPAT renews on a three-year license with 24 CE hours, 8 of them hands-on. An employer who budgets the class time, the exam fees and the CE hours on schedule removes a real friction point — and a tester whose certification is current is one you can put on the routes that need testing.
Give the credential a destination. ASSE's 5000 series runs from tester into adjacent seats — 5120 Cross-Connection Control Surveyor, 5130 Backflow Prevention Assembly Repairer, 5150 program administrator — and names a fire-specific 5140 credential. Mapping your own ladder onto those rungs, and into inspection or service lead roles, costs less than re-running this search a year from now. Beyond the credential, retention for this seat looks like retention for the rest of your service bench: pay what the ad promised, realistic route loads, and exit interviews when someone leaves. Our research found no reliable national turnover survey for this title to benchmark against.
Employer information, not licensing, legal or employment-law advice. Confirm certification and licensing requirements with the water purveyor and the state agency that issues your company's credentials, screening and testing questions with employment counsel, and certification program details with ASSE, ABPA or whichever body issues the credential.