How to become a backflow tester in Delaware
Delaware splits tester recognition between the state and local water purveyors. Delaware's drinking water regulation (16 DE Admin. Code 4462) defines and requires cross-connection control programs for public water systems but no official page was found naming a state backflow tester credential or recognized third-party certifications; plumbers are separately licensed by the Board of Plumbing, Heating, Ventilation, Air Conditioning and Refrigeration Examiners.
- Recognition
- hybrid
- Named programs
- Ask purveyors
- Verified
- Partially
Start at the source
Delaware Health and Social Services, Division of Public Health - Office of Drinking Water oversees cross-connection control here. Its site, www.dhss.delaware.gov, carries the current program requirements.
Verify locally
Parts of this state's structure could not be fully confirmed against official sources; the authority and your purveyors are the final word.
The path, wherever you are
- Confirm which certifications the authority and your target purveyors accept.
- Complete a recognized tester course, typically a multi-day class ending in a written exam and a hands-on practical on the main assembly families. The ASSE 5110 requirements are the national reference point.
- Register with the authority or each purveyor, per their process, and keep your gauge calibration documented.
- Renew on the recert clock before it lapses: the two-clock sheet makes the schedule automatic, and backflow tester recertification explains the three-year cycle.
Before committing, read what backflow testing pays andhow to become a backflow tester, which walks the course, exam and practical that every state path runs through.
Other states
The instrument this trade runs on
Mid-West 845-5 5-Valve Test Kit
Arbiter Mako MK5 Digital 5-Valve Kit
Acugauge TK Plus 3-Valve Kit
BAC-FLO-5 Test KitConfirm what your jurisdiction's test procedures require before choosing a kit.The kit guide.
The three-year clock sheet, free
Both clocks of the testing trade, your credential and your customers, counted backward on one printable page. Enter your email and we will send you straight to it.
No spam. One useful sheet and occasional notes.