California's cross-connection rules, long known as Title 17 and now set by the State Water Resources Control Board, require water suppliers in California to keep a list of every backflow assembly and collect a passing test each year.

Many utilities accept reports only from testers certified by an approved body such as the AWWA California-Nevada Section. Recycled water lines add another layer: sites with purple pipe often need an RPZ on the potable service. Grizzly Backflow & Plumbing connects California property owners with certified testers for annual backflow testing, RPZ valve testing and test report filing. Call (833) 990-5874.

Certified backflow testers working in and around California
RPZ, double check, PVB and fire line assemblies
Test reports filed with your water utility
A person on the phone at (833) 990-5874

(833) 990-5874

Why call us for backflow testing

California Owners Call Us for Backflow Testing

California utilities are strict about who signs the report. A test by someone without a recognized tester certification may be rejected outright. Grizzly Backflow & Plumbing connects California callers with certified testers whose names are on the approved lists most water suppliers keep.

Reports are filed through the utility's portal or on its own form, with gauge calibration dates included. Sites with recycled water or fire lines get the extra checks those connections need. Call (833) 990-5874 for annual backflow testing, test report filing and backflow prevention in California.

Call (833) 990-5874

Certified testers

Testers whose certification your water utility accepts for California.

Report filing

Reports go in through the utility portal or on its own form.

Price first

You hear the price on the phone before the test is booked.

Readings, not guesses

Each check and relief valve gets an actual psid reading.

Repair on site

Rebuild kits for common brands, so many failed devices are fixed and retested in one visit.

Multi-device sites

Domestic, fire line and irrigation assemblies tested and tracked together.

Backflow testing FAQs

Questions about backflow testing

Common questions about backflow testing in California.

Talk to a person

Who is allowed to test my backflow device?

A tester who holds a backflow tester certification recognized by your state or your water utility. Many utilities keep an approved tester list and reject reports signed by anyone not on it.

What happens if I miss the backflow test deadline?

Utilities usually send a second notice, and after that some add a fee or schedule a service shutoff. Calling (833) 990-5874 before the deadline is the simplest way to avoid it.

Why is water dripping from my RPZ relief valve?

A steady drip usually means debris is holding the first check open or the relief valve diaphragm is worn. A cleaning or a rebuild kit fixes most cases.

What does a failed backflow test mean?

A check valve or the relief valve did not hold its required pressure differential. The device needs repair or replacement, then a retest before a passing report can be filed.

Is fire sprinkler backflow testing different?

Yes. Along with the standard check valve test, NFPA 25 calls for an annual forward flow test on fire line backflow assemblies. Results often go to both the water utility and the fire authority.

Book a backflow test

Backflow Test Due in California? Call now.

Certified testers for backflow testing in California. Call (833) 990-5874 and we go through the device and the price before anything is booked.

(833) 990-5874

Phone · (833) 990-5874