Backflow Testing – Bethany, Beaverton OR
Bethany is a neighborhood of landscaped, HOA-tended lots, and that means underground sprinkler systems on nearly every street. Every one of those irrigation systems has a backflow assembly, and in Oregon that assembly has to be tested by a certified tester once a year. If a testing notice from the Tualatin Valley Water District just landed in your mailbox, True Flow Plumbing is certified to test, repair, and file the results — usually in a single visit.
Why Bethany Gets So Many Backflow Notices
The thing that makes Bethany green in summer is the same thing that generates the annual paperwork: irrigation. A backflow assembly is the device that keeps sprinkler water — and whatever fertilizer, pesticide, or standing water is in those lines — from being siphoned back into the drinking water main if pressure drops. Because the risk is real, the state requires an annual test, and your water provider tracks it by address.
The Freeze Problem in Bethany
Most failed assemblies we see here failed over winter. When an irrigation line isn't blown out before the first hard freeze, water trapped in the brass backflow body expands and cracks it, or leaves the internal checks fouled. That's why a lot of Bethany homeowners pass one year and fail the next despite doing nothing differently — the freeze did it. We can rebuild or replace on the spot so a failure doesn't mean a second trip.
What We Handle
- Certified annual testing of residential irrigation backflow assemblies
- Completing and filing the report with TVWD or your water provider
- On-site rebuild of failed check valves and relief valves
- Replacement of freeze-cracked or corroded assemblies
- Testing for homes on other Washington County water districts
- Reminders so next year's test doesn't sneak up on you
Signs Your Assembly May Fail
- Water dripping or spraying from the relief valve when the system runs
- Visible cracks in the brass body — a classic freeze sign
- The assembly wasn't winterized before last year's freeze
- It's been more than a year since your last documented test
- You bought the home and have no record of it ever being tested
Frequently Asked Questions
I don't have irrigation. Do I still need a test?
Usually not for a standard home without a sprinkler system, boiler feed, or fire line. Backflow testing applies where there's a cross-connection risk. If you got a notice and aren't sure why, call us — we can tell you quickly whether it applies to your Bethany property.
When's the best time of year to test in Bethany?
Spring, once the freeze risk has passed and before you fire up the irrigation for the season. Testing then catches any winter freeze damage before your first watering and gets the report filed well ahead of most deadlines.
Do you do the paperwork, or do I?
We do. Part of a certified test is completing the official form and submitting it to your water provider. You get a copy for your records and don't have to deal with the filing.
Bethany & NW Beaverton Areas We Serve
All Backflow Testing – Beaverton → | Faucet Repair – Bethany → | Gas Line – Bethany →
Got a Backflow Notice in Bethany?
Don't let the deadline slip. We'll test, handle any repair on the spot, and file the report for you.