Backflow testing questions

A single-device test with easy access is often roughly $75–$175. More devices at the same site are usually priced per device. Vaults, cages, and missing shutoffs add time. Those are typical ranges, not a quote from this page.

Water agencies run cross-connection programs so non-potable water cannot enter the public system. The City of San Diego publishes its own rules; other cities and districts in the DMA mail their own letters. Follow the letterhead you received. This site does not replace the utility.

No. This website is not the tester of record and does not publish a license or AWWA number it does not hold. A certified local tester may contact you after you submit a request. Ask to see their current card.

No honest tester can. Devices fail. The person who tests it will tell you the result and what a rebuild or replacement would involve.

Repair or replace, then retest, then file. A rebuild plus retest is often a few hundred dollars. Replacement can be several hundred to a few thousand depending on size, especially on fire lines. The agency wants a passing report, not a conversation with this website.

Often within one to two weeks for a routine annual. Past-due notices should say so on the form. We cannot file an extension and cannot dispatch a tester tonight.

The page is written for the San Diego DMA. Chula Vista, El Cajon, Escondido, Oceanside, and La Mesa have their own pages. We do not silently expand into Orange County.

Usually no. Annual testing is a relationship. Use this page if you need a tester and do not have one, or if you were told to find a replacement.

No. If a pipe is broken or water is off, call a plumber directly. This form is for scheduled testing and failed-test repair.

This site publishes a 2026 backflow testing statistics page that counts the City of San Diego approved tester list and quotes the city’s published annual-test notices. It is not a tester of record and not a bid. Open it from the note under these answers or from Related pages.