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Plumbing service

Backflow Testing and Prevention in Westminster, CO

A backflow assembly sits between your sprinkler system and the drinking water. It must work, and in Westminster it must be tested on a schedule and reported to the city.

Call and say what type of assembly you have and when it was last tested.

What the city requires

  • Approved assemblyThe city requires one on irrigation, commercial and other services based on hazards.
  • Annual testingTested at install and every year after by a certified tester.
  • Results reportedTest results go to the city's cross-connection control team.
A brass backflow preventer on a lawn beside a house with an irrigation valve box nearby

Why backflow matters

Backflow is water flowing the wrong way. If pressure in the city main drops, water from an irrigation system, a pond or a boiler can be drawn back into the drinking supply. An assembly prevents that.

Fertilizer, pesticides and standing water can all be in a sprinkler line. The assembly is the barrier between them and the tap.

Types of assemblies

Homes usually have one of three devices: a pressure vacuum breaker, a double check assembly or a reduced pressure zone unit. The level of hazard and the local code decide which is required.

A pressure vacuum breaker sits above ground and is common on residential sprinklers. Reduced pressure assemblies are used where the hazard is higher.

In Westminster

Where this fits with sprinkler season

Many owners book the annual test in spring, when the sprinkler is started for the year. Fall blowouts and winterization protect the assembly.

The city bases requirements on site hazards, so a home with a pond, a well or a separate irrigation service may have different needs. Ask the city's program if you are unsure.

Cost

How backflow work is priced

A yearly test is quick and ordinary, and repairs depend on the fault. Keep these points in mind.

  • 1Type of assembly. A reduced pressure assembly takes more time to test.
  • 2Repair parts. Rubber parts and springs are cheap and plentiful. A cracked body needs replacement.
  • 3Location. An assembly in a buried vault is harder to reach.
  • 4Report filing. Some testers file with the city for you.

Ask whether the price includes filing the test report.

Testing and reporting

Westminster says assemblies must be tested when installed and every year afterward by a certified backflow tester. Results are reported to the city's cross-connection control team, and the city accepts online submission through a third-party site.

If an assembly fails, it is repaired or replaced and tested again. Keep the test report and the date of the next test.

Seasonal care

Irrigation assemblies should be drained before the first hard freeze. A pressure vacuum breaker left full can crack, which is a common cause of a spring leak.

In spring, open the valves slowly and check for leaks. Ask for a test after the system is turned on.

Keeping records

Write the test date and the result on a tag or in a file. Keep the report for the next visit, because it shows the assembly's history.

If you sell, include the latest report in the disclosure packet.

Keeping the paperwork in order

After a test, the certified tester files a report with the water provider, and you should keep a copy. If a test fails, the report lists the problem so the repair can be quoted and retested quickly.

Mark the test due date on a calendar. Utilities usually send reminders, but a missed notice does not cancel the requirement, and a late test can lead to follow-up letters or a shutoff notice.

More yard and irrigation plumbing

Leak Detection

Trace a hidden leak behind a wall, under a slab or along the buried line before any wall has to be opened.

Common questions

Answers about backflow

The city requires an approved assembly based on hazard and tests at installation and annually. Ask the cross-connection program about your service.

A certified backflow prevention assembly tester. Ask for proof of certification.

The city says results go to its cross-connection control team and can be submitted online.

A worn seal, a cracked body from a freeze or a stuck relief port. Shut off the supply and call for repair.

Calls are taken at every hour. Annual tests tend to be booked for daytime, but an assembly that spits water or fails should be reported promptly. The dispatcher can explain timing.

Backflow test due?

Call and say what kind of assembly you have. A contractor can schedule the test and the report.

Call (720) 715-9665

Service area centered on Westminster and the nearby Denver north-metro cities.

Call (720) 715-9665 · 24/7 Emergency Plumber