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Backflow Testing · Iowa City, Iowa

Backflow Testing & Repair in Iowa City, Iowa

Backflow prevention keeps irrigation water, boiler water and process water from being pulled back into the drinking supply when pressure drops. Most Iowa City water authorities want an annual test on any device protecting a commercial building, a fire line or a lawn irrigation system.

Call (833) 435-9778 and describe what is happening. We will give you an arrival window before you hang up and a flat price before anyone starts work - the same price at 2am as at 2pm.

  • 24/7 in Iowa City
  • Flat price
  • Same-day service

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(833) 435-9778

Answered 24 hours a day, including weekends and holidays.

Call (833) 435-9778
  • You have received an annual test notice from the water authority
  • An irrigation system with a device that has never been tested
  • A device that is leaking or weeping continuously

When to call us in Iowa City

  • You have received an annual test notice from the water authority
  • An irrigation system with a device that has never been tested
  • A device that is leaking or weeping continuously
  • New commercial fit-out requiring certification
  • A fire line device due for its yearly check
  • You have bought a property and no records exist

What the visit covers

  • Full test on RPZ, double check and PVB assemblies
  • Rebuild kits carried for the common assemblies
  • Repair and retest in the same visit where possible
  • Paperwork completed and filed with the authority
  • Freeze protection advice for outdoor Iowa devices
  • Reminder the following year so you do not miss it

Grease is the leading cause of kitchen line calls

Most of the kitchen drains we cable in Iowa City are lined with cooled grease rather than blocked by any single object. It goes down warm and sets on the pipe wall a few feet along. Once that layer is thick enough, one bowl of rice finishes the job.

Backflow Testing across Iowa City

Billybob Plumbing covers Iowa City and the surrounding communities. Call for service anywhere in the area.

Iowa City customers on our backflow testing work

★★★★★

Water bill nearly doubled and I could not find anything wrong. They found a slab leak under the hallway with a listening device, cut one small square of flooring, and fixed it. I was braced for a lot worse.

Curtis D. · Iowa City, IA

★★★★★

Called about a gas smell near the water heater. They told me to get out of the house first and call the utility, then came and found it. Took it seriously, which I appreciated.

Rhoda J. · Coralville, IA

★★★★★

Reliable is the main thing. Third time we have used them across two houses and it has been the same experience every time.

Gareth O. · North Liberty, IA

Other plumbing services in Iowa City

Backflow Testing in Iowa City: common questions

How often does a backflow device need testing?

Annually in most Iowa City jurisdictions, and some commercial and fire applications more often. We keep your date on file and remind you before it lapses.

What happens if my device fails the test?

We rebuild it and retest. We carry kits for the assemblies we see most in Iowa City, so failures are usually resolved on the same visit rather than turning into a second appointment.

Do you file the paperwork with the water authority?

Yes. The completed report goes to the authority and a copy goes to you, so there is nothing left on your desk to chase.

Should I have my irrigation backflow tested before winter?

Test on your normal annual schedule, but do winterise the device before the first hard Iowa freeze. A cracked assembly from freezing is a far bigger bill than a test.

Do you work on commercial properties in Iowa City?

Yes. Restaurants, salons, clinics, offices, churches and multi-tenant buildings across Iowa City. We schedule outside trading hours at no extra cost so a repair does not cost you a day of business.

Backflow Testing in Iowa City, day or night

One number, answered around the clock, with the price agreed before we start.

(833) 435-9778
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