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Injecting fertilizer into irrigation water can push it back into your drinking water. Here is what New Jersey requires for devices, testing and repairs.

What Jersey City property owners must know about backflow preventers: who needs one, annual testing, the $75 city fee, permits, certified testers and failed tests.

What New Jersey requires for soda fountain backflow protection: ASSE 1022 vs. air gap, integral vs. inline devices, piping, testing and costs for owners.

Camden, NJ backflow testing rules explained: who can test, how often, the 5-day reporting deadline, the 30-day repair window, and what it costs.

How backflow prevention works for New Jersey nursing homes: testing, records, fire lines, Legionella risk and what to ask a tester before you book.

Does your New Jersey ice machine need a backflow preventer? Learn what the code requires, the air gap vs. device question, testing, and who can certify it.

What New Jersey veterinary clinics must do about backflow: annual testing, certified testers, Certificates of Compliance, device placement and failed tests.

Is a backflow inspection required before closing in New Jersey? Learn which devices need testing, how to check the record, and how to avoid delays at closing.

Replacing a backflow preventer in New Jersey takes a plumbing permit. Here is who files it, what inspectors check, and when NJDEP rules also apply.

Does a backflow preventer hold up your NJ certificate of occupancy? Learn when the test is due, who can do it, what to file and how it differs from a CC.